shell脚本应用小程序

蔚落 2022-07-12 04:49 240阅读 0赞

**1...100的求和**

非递归：

\#!/bin/bash

read num

count=1

sum=0

val=""

ret=""

while \[ $count -le $num \]

if \[ $count -eq $num \];then

val=$count

else

val=$\{count\}'+'

let sum+=count

let count++

ret=$\{ret\}$\{val\}

done

echo $\{ret\}'='$sum

递归：

\#!/bin/bash

read num

function add()\{

local val=$1

local count=0

local sum=0

local num=$val

if \[ $val -eq 1 \];then

echo 1

return

arr=$count1+$val

let val--

let count=$( add $val )

let sum=$count+$num

echo $sum

ret=$(add $num)

echo $ret

结果：

\[fbl@www test6\_19\]$ ./add.sh

100

1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50+51+52+53+54+55+56+57+58+59+60+61+62+63+64+65+66+67+68+69+70+71+72+73+74+75+76+77+78+79+80+81+82+83+84+85+86+87+88+89+90+91+92+93+94+95+96+97+98+99+100=5050

**求一个文件中数的最大最小值**

`#!/bin/bash`

` `

`read`  `name`

`max=0`

`min=0`

`count=0`

`while`  `read`  `line`

`do`

`    ` `if`  `[ $count -` `eq`  `1 ];` `then`

`        ` `min=$line`

`    ` `fi`

`    ` `(( count++ ))`

`    ` `if`  `[ $max -lt $line ];` `then`

`        ` `max=$line`

`    ` `fi`

`    ` `if`  `[ $min -gt $line ];` `then`

`        ` `min=$line`

`    ` `fi`

`    ` `done`  `<$name`

`echo`  `"max: "` `$max ` `"min: "` `$min`

**斐波那契数列求和**

<table style="margin-bottom:10px; border-collapse:collapse; color:rgb(0,0,0); font-family:sans-serif; font-size:16px"> 
 <tbody style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
  <tr style="padding:0px!important; margin:0px!important; font-size:1em!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; min-height:auto!important"> 
   <td style="padding:0px!important; border-width:0px!important; border-style:initial!important; border-color:initial!important; margin:0px!important; font-size:1em!important; line-height:1.1em!important; float:none!important; background:none!important; bottom:auto!important; left:auto!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; min-height:auto!important"> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">非递归</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:gray!important">#!/bin/bash</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">read</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">num</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">fib_val[0]=1</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">fib_val[1]=1</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">count=0</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">function</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">fib(){ </code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">local</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">val=$1</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">while</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">[&nbsp;$count&nbsp;-lt&nbsp;$val&nbsp;]</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">do</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">let</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">fib_val[${count}+2]=${fib_val[${count}+1]}+${fib_val[$count]}</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">let</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">count++</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">done</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">}</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">fib&nbsp;$num</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">echo</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">${fib_val[$count]}</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important">
      &nbsp; 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">递归：</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(0,130,0)!important">#!/bin/bash</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">read</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">num</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">function</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">fib(){ </code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">local</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">val=$1</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">local</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">num1=0</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">local</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">num2=0</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">if</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">[&nbsp;$val&nbsp;-</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">eq</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">0&nbsp;-o&nbsp;$val&nbsp;-</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">eq</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">1&nbsp;];</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">then</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">echo</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">1</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">return</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">fi</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">let</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">val--</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">num1=$(&nbsp;fib&nbsp;$val&nbsp;)</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">let</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">val--</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">num2=$(&nbsp;fib&nbsp;$val&nbsp;)</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">let</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">sum</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">=$num1+$num2</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">echo</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">$</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">sum</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">}</code> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

结果：

\[fbl@www test6\_19\]$ ./fib.sh

144

**字符串截取的应用**

<table style="margin-bottom:10px; border-collapse:collapse; color:rgb(0,0,0); font-family:sans-serif; font-size:16px"> 
 <tbody style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
  <tr style="padding:0px!important; margin:0px!important; font-size:1em!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; min-height:auto!important"> 
   <td style="padding:0px!important; border-width:0px!important; border-style:initial!important; border-color:initial!important; margin:0px!important; font-size:1em!important; background:none!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; min-height:auto!important; color:rgb(175,175,175)!important"> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      1 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      2 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      3 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      4 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      5 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      6 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      7 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      8 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      9 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      10 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      11 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      12 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      13 
    </div> 
    <div style="word-wrap:normal; padding:0px 0.5em 0px 1em!important; margin:0px!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important; white-space:pre!important">
      14 
    </div> </td> 
   <td style="padding:0px!important; border-width:0px!important; border-style:initial!important; border-color:initial!important; margin:0px!important; font-size:1em!important; line-height:1.1em!important; float:none!important; background:none!important; bottom:auto!important; left:auto!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; min-height:auto!important"> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:gray!important">#!/bin/bash</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">read</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">name</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">str1=</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:blue!important">""</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">str2=</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:blue!important">""</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">str3=</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:blue!important">""</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">str=</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:blue!important">""</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">while</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">read</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">line</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">do</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">str1=$(</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">echo</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">$line|</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">cut</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">-c&nbsp;1-3)</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">str2=$(</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">echo</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">$line|</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">cut</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">-c&nbsp;4-6&nbsp;|</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">tr</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:blue!important">'[a-z]'</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:blue!important">'[A-Z]'</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">)</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">str3=$(</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">echo</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">$line|</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">cut</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">-c&nbsp;7-9)</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">str=</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:blue!important">"${str3}"</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:blue!important">"${str2}"</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:blue!important">"${str1}"</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;&nbsp;</code> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">echo</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">$str&nbsp;</code> 
    </div> 
    <div style="white-space:nowrap; padding:0px 1em!important; margin:0px!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-size:1em!important; min-height:auto!important"> 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">done</code>&nbsp; 
     <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-size:1em!important; min-height:auto!important">&lt;$name&nbsp;&gt;file_bak</code> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

结果：

\[fbl@www test6\_19\]$ cat file1

123abc789

456def789

364rgy532

278bsy682

\[fbl@www test6\_19\]$ vim string.sh

\[fbl@www test6\_19\]$ ./string.sh

file1

\[fbl@www test6\_19\]$ cat file\_bak

789ABC123

789DEF456

532RGY364

682BSY278

**挂载U盘，卸载U盘**

`#!/bin/bash`

`quit(){`

`    ` `clear`

`    ` `echo ` `"***************************************"`

`    ` `echo ` `"*         Thank you to use            *"`

`    ` `echo ` `"***************************************"`

`    ` `exit`  `0`

`}`

`#load usb`

`mountusb(){`

`    ` `clear`

`    ` `mkdir /mnt/usb `

`    ` `/sbin/fdisk -l | grep dev/sd`

`    ` `echo -e ` `"Please Enter the device name of usb as above:\c"`

`    ` `read PARAMETER`

`    ` `mount /dev/$ PARAMETER /mnt/usb`

`}`

`umountusb(){`

`    ` `clear`

`    ` `umount /mnt/usb`

`}`

`display(){`

`    ` `clear`

`    ` `ls -l /mnt/usb`

`}`

`copydisktousb(){`

`    ` `clear`

`    ` `echo ` `"Please Enter the filename in disk to usb:\c"`

`    ` `read ` `FILE`

`    ` `echo ` `"coping,please wait..."`

`    ` `cp $` `FILE`  `/mnt/usb`

`}`

`copyusbtodisk(){`

`    ` `clear`

`    ` `echo ` `"Please Enter the filename in usb to disk:\c"`

`    ` `read ` `FILE`

`    ` `echo ` `"coping,please wait..."`

`    ` `cp /mnt/usb/$` `FILE`  `.`

`}`

`clear`

`while`  `true`

`do`

`    ` `echo ` `"============================================"`

`    ` `echo ` `"*** UNIX USB MANAGE PROGRAM              ***"`

`    ` `echo ` `"============================================"`

`    ` `echo ` `"             1-MOUNT USB                    "`

`    ` `echo ` `"             2-UMOUNT USB                   "`

`    ` `echo ` `"             3-DISPLAY USB INFOMATION       "`

`    ` `echo ` `"             4-COPY FILE IN DISK TO USB     "`

`    ` `echo ` `"             5-COPY FILE IN USB TO DISK     "`

`    ` `echo ` `"             0-EXIT                         "`

`    ` `echo -e ` `"Please enter a choice (0--5):\c"`

`    ` `read CHOICE`

`    ` `case`  `$CHOICE in`

`        ` `1) mountusb ;;`

`        ` `2) umountusb ;;`

`        ` `3) display ;;`

`        ` `4) copydisktousb ;;`

`        ` `5) copyusbtodisk ;;`

`        ` `0) quit ;;`

`        ` `*) echo ` `"invalid choice!! correct choice is (0--5)"`

`           ` `sleep 5`

`           ` `clear ;;`

`    ` `esac`

`done   `

**简易的学生成绩管理：增删查**

`#/bin/bash`

`#score.sh`

`#color function`

`colour()`

`{`

`  ` `case`  `$1 in`

`       ` `black_white)`

`       ` `echo -e ` `"\033[40;37m"`

`        ` `;;`

`       ` `black_green)`

`        ` `echo -e ` `"\033[40;32m"`

`      ` `;;`

`      ` `black_cyan)`

`      ` `echo -e ` `"\033[40;36m"`

`      ` `;;`

`      ` `red_yellow) `

`        ` `echo -e ` `"\033[41;33m"`

`      ` `;;`

`      ` `yellow_blue)`

`      ` `echo -e ` `"\033[43;34m"`

`      ` `;; `

`      ` `*)echo ` `"invalid colour"`

`       ` `;;`

`esac`

`}`

`#search function`

` ` `search()`

`{`

`   ` `colour black_white`

`   ` `clear`

`   ` `echo -e ` `"please enter name >>>\c"`

`   ` `read NAME`

`  ` `#wujilu`

`  ` `if`  `[ ! -f ./record ];then`

`  ` `echo` `"you must have some scores before you can seach!"`

`  ` `sleep 10`

`  ` `clear`

` ` `return`

`fi`

`if`  `[ -z $NAME ];then`

`  ` `echo ` `"you did't enter a name!"`

`  ` `echo -e ` `"please enter name >>>\c"`

`  ` `read NAME`

`fi`

`grep -i ` `"$NAME"`  `./record 2> /dev/null`

`case`  `$? in`

`    ` `1)echo ` `"name not in record!"`

`    ` `;;`

`    ` `2)echo ` `"you did't enter name to search!"`

`    ` `sleep 10`

`    ` `search`

`esac`

`}`

`#add record`

`add()`

`{`

`  ` `clear`

`  ` `echo -e ` `"enter name and score of a record:\c"`

`  ` `if`  `[ ! -f ./record ];then`

`    ` `touch record`

`   `

`   ` `fi`

`read NEWNAME`

`echo ` `"$NEWNAME"` `>./record`

`sort -o ./record ./record`

`}`

`#delete`

`delete` `()`

`{`

`  ` `clear`

`  ` `echo -e ` `"please enter name >>>c"`

`   ` `read NAME`

`  ` `if`  `[ ! -f ./record ];then`

`   ` `echo ` `"This name is not in record"`

`  ` `else`

`  ` `cp record record.bak`

`  ` `rm -f record`

`  ` `grep -v ` `"$NAME"`  `./record.bak >record`

`   ` `rm -f record.bak`

`fi`

`}`

`#display record`

`display()`

`{`

`  ` `colour black_white`

`  ` `more ./record`

`  ` `sleep 10`

`}`

`#edit`

`edit()`

`{`

`   ` `vi ./record`

`}`

`#help pingmu`

`help()`

`{`

`   ` `clear`

`   ` `colour black_cyan`

`   ` `echo ` `"This is a student's record program by unix shell language"`

`}`

`#exit`

`quit()`

`{`

` ` `clear`

` ` `colour black_white`

` ` `exit`

`}`

`clear`

`while`  `true`

`do`

`    ` `colour red_yellow `

`    ` `echo ` `"##########################################"`

`    ` `echo ` `"#      1:search a record                 #"`

`    ` `echo ` `"#      2:add  a record                   #"`

`    ` `echo ` `"#      3:delete a record                 #"`

`    ` `echo ` `"#      4:display all record              #"`

`    ` `echo ` `"#      5:edit record with vi             #"`

`    ` `echo ` `"#      H:help screen                     #"`

`    ` `echo ` `"#      Q:exit pragma                     #"`

`    ` `echo ` `"##########################################"`

`    ` `colour black_green`

`    ` `echo -e -n "\tplease enter your choice [1 2 3 4 5 H Q]:`

`\c"`

`read CHOICE`

`case`  `$CHOICE in`

`      ` `1)search`

`      ` `;;`

`      ` `2)add;`

`      ` `;;`

`     ` `3)` `delete` `;clear`

`     ` `;;`

`     ` `4)display`

`     ` `;;`

`     ` `5)edit;clear`

`     ` `;;`

`     ` `H)help`

`     ` `;;`

`     ` `Q)quit`

`     ` `;;`

`     ` `*)echo ` `"please enter valid mode"`

`     ` `;;`

`esac `

`sleep 10`

`clear`

`done`

![wKioL1dmP7Lh-3rYAADCyJwYrk4165.png][]![wKioL1djq4DjUi6rAABuyf0WTE8481.png][]

![wKioL1djmxjx5LUrAACG8N3z-pA754.png][]

![wKioL1dmQgOh3xjnAAD7Z8XX4Cs678.png][]

`#!/bin/bash`

`#脚本功能：Nginx1.10.2安装，SVN1.8.4安装，Redis3.0.5安装，Memcached1.4.24安装，Tomcat7.0.73安装,jdk-8u101-linux-x64安装,mysql5.6.21安装`

`######################################源码包下载链接########################################`

`#========tomcat链接=========`

`#http://mirrors.cnnic.cn/apache/tomcat/tomcat-7/v7.0.73/bin/apache-tomcat-7.0.73.tar.gz`

`#=========redis链接=========`

`#http://download.redis.io/releases/redis-3.0.5.tar.gz`

`#=======libevent链接========`

`#http://down1.chinaunix.net/distfiles/libevent-2.0.20-stable.tar.gz`

`#=======memcahed链接========`

`#http://www.memcached.org/files/memcached-1.4.24.tar.gz`

`#=======pcre链接========`

`#http://exim.mirror.fr/pcre/pcre-8.38.tar.gz`

`#=======openssl链接========`

`#http://distfiles.macports.org/openssl/openssl-1.0.2f.tar.gz`

`#=======zlib链接========`

`#http://down1.chinaunix.net/distfiles/zlib-1.2.7.tar.gz`

`#=======nginx链接========`

`#http://nginx.org/download/nginx-1.10.2.tar.gz`

`###########################################################`

`###                     定义变量                        ###`

`###########################################################`

`#-----------安装包名和安装包文件夹名定义--------------`

`#===jdk8安装包名和包文件名定义====`

`JDK_PCAKGE=` `'jdk-8u101-linux-x64.tar.gz'`

`JDK_DIRECTORY=` `'jdk1.8.0_101'`

`#===Tomcat7安装包名和包文件名定义===`

`TOMCAT_PCAKGE=` `'apache-tomcat-7.0.73.tar.gz'`

`TOMCAT_DIRECTORY=` `'apache-tomcat-7.0.73'`

`#===redis安装包名和包文件名定义===`

`REDIS_PCAKGE=` `'redis-3.0.5.tar.gz'`

`REDIS_DIRECTORY=` `'redis-3.0.5'`

`#===libevent安装包名和包文件名定义===`

`LIBEVENT_PCAKGE=` `'libevent-2.0.20-stable.tar.gz'`

`LIBEVENT_DIRECTORY=` `'libevent-2.0.20-stable'`

`#===makecache安装包名和包文件名定义===`

`MAKECACHE_PCAKGE=` `'memcached-1.4.24.tar.gz'`

`MAKECACHE_DIRECTORY=` `'memcached-1.4.24'`

`#===pcre安装包名和包文件名定义===`

`PCRE_PCAKGE=` `'pcre-8.38.tar.gz'`

`PCRE_DIRECTORY=` `'pcre-8.38'`

`#===openssl安装包名和包文件名定义===`

`OPENSSL_PCAKGE=` `'openssl-1.0.2f.tar.gz'`

`OPENSLL_DIRECTORY=` `'openssl-1.0.2f'`

`#===zlib安装包名和包文件名定义===`

`ZLIB_PCAKGE=` `'zlib-1.2.8.tar.gz'`

`ZLIB_DIRECTORY=` `'zlib-1.2.8'`

`#===nginx安装包名和包文件名定义===`

`NGINX_PCAKGE=` `'nginx-1.10.2.tar.gz'`

`NGINX_DIRECTORY=` `'nginx-1.10.2'`

`#===svn.repo文件名===`

`SVN_PACKAGE=` `'wandisco-svn.repo'`

`#===mysql安装包名定义===`

`MYSQLSERVER_PCAKGE=` `'MySQL-server-5.6.21-1.rhel5.x86_64.rpm'`

`MYSQLDEVEL_PCAKGE=` `'MySQL-devel-5.6.21-1.rhel5.x86_64.rpm'`

`MYSQLCLIENT_PCAKGE=` `'MySQL-client-5.6.21-1.rhel5.x86_64.rpm'`

**`#-------------颜色定义-------------------------`**

`BLUEH=` `"\033[36m"`

`TAILS=` `"\033[0m"`

`OUTPUT=` `"echo -e"`

`RED=` `"\033[31m"`

`GREEN=` `"\033[32m"`

`FLICKER=` `"\033[05m"`

`#-------------------路径与文件名定义-----------------`

`FILE=` `'file'`

``DIR=` `` `dirname`  ``$0` ``

`LOG_NAME=` `'install.log'`

``PACKAGE_PATH=` `` `cd`  `$DIR && ` `pwd` `` ` ``

`FILE_PATH=$PACKAGE_PATH/$FILE   `

`INSTALL_LOG=$FILE_PATH/$LOG_NAME`

`#---------------------安装包下载地址------------------`

`INURL=` `'http://192.168.1.1:8001'`

`OUTURL=` `'http://106.1.1.1:8001/'`

`URL=$OUTURL`

`#-----------检测与创建定义的文件、目录----------------`

`[ -d $FILE_PATH ] || ` `mkdir`  `$FILE_PATH`

`> $INSTALL_LOG`

`#------------------服务器IP地址定义------------------`

``IP=` `` `ifconfig`  `| ` `grep`  `'inet addr'`  `| ` `head`  `-1 | ` `awk`  `-F` `':'`  `'{print $2}'`  `| ` `awk`  `'{print $1}'` `` ` ``

`#--------------------加载函数库---------------------`

`. ` `/etc/init` `.d` `/functions`

`###########################输出提示信息############################`

`echo`  `''`

`echo`  `"###########################################################"`

`echo`  `"###                                                     ###"`

`echo`  `"###      《迷糊岛》服务端运行环境  一键安装脚本       ###"`

`echo`  `"###                                                     ###"`

`echo`  `"###########################################################"`

`echo`  `''`

`###########################################################`

`###                  定义函数                           ###`

`###########################################################   `

`#下载Yum`

`function`  `yumInstall {  `

`  ` `#安装编译依赖包`

`  ` `yum -y ` `install`  `gcc gcc-c++ wget elink ` `tar`

`  `

`  ` `if`  `[ $? -` `eq`  `1 ];` `then`

`  `

`      ` `#检查网络`

`      ` `$OUTPUT --------------------$BLUEH【 正在检查网络,请稍候 】$TAILS--------------------`

`      ` `echo`

`      `

`      ` `echo`  `"#Yum安装"`  `>> $INSTALL_LOG`

`      `

`      ` `ping`  `www.baidu.com -c 3 &> ` `/dev/null`

`      ` `[ $? -` `eq`  `0 ] && ` `echo`  `"网络正常"`  `>> $INSTALL_LOG || {`

`          ` `action ` `"你的网络不通，请修复你的网络，然后再进行安装，脚本退出"`  `/bin/false`

`          ` `echo`  `"@你的网络不通，请修复你的网络，然后再进行安装,脚本在此步退出"`  `>> $INSTALL_LOG`

`          ` `exit`  `2`

`      ` `}  `

`      `

`      ` `[ -d  ` `/etc/yum` `.repos.d` `/other`  `] || ` `mkdir`  `/etc/yum` `.repos.d` `/other`

`      ` `mv`  `/etc/yum` `.repos.d/*.repo ` `/etc/yum` `.repos.d` `/other`

`      `

`      ` `wget -O ` `/etc/yum` `.repos.d` `/CentOS-Base` `.repo http:` `//mirrors` `.aliyun.com` `/repo/Centos-6` `.repo`

`      ` `[ $? -` `eq`  `0 ] && ` `echo`  `"yum源下载成功"`  `>> $INSTALL_LOG || {`

`          ` `action  ` `"yum源下载失败，脚本退出"`  `/bin/false`

`          ` `echo`  `"@yum源下载失败，脚本在此步退出"`  `>> $INSTALL_LOG `

`          ` `exit`  `2`

`          ` `}`

`          `

`      ` `echo`   `>> $INSTALL_LOG`

`      `

`      ` `yum clean all`

`      ` `yum makecache `

`  `

`  ` `fi`

`}`

`#Svn安装`

`function`  `svnInstall {`

`    ` `echo`  `"############# Svn1.8.4安装 #############"`  `>> $INSTALL_LOG`

`    `

`    ` `wget -c -P ` `/etc/yum` `.repos.d/ $URL$SVN_PACKAGE`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"svn包下载成功"`  `>> $INSTALL_LOG || ` `echo`  `"svn包下载失败"`  `>> $INSTALL_LOG `

`    `

`    ` `yum clean all`

`    ` `yum -y ` `install`  `subversion subversion-devel`

`    ` `if`  `[ $? -` `eq`  `1 ];` `then`

`        ` `yum -y ` `install`  `subversion subversion-devel`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"svn安装成功"`  `>> $INSTALL_LOG || ` `echo`  `"svn安装失败"`  `>> $INSTALL_LOG`

`    ` `else`

`        ` `echo`  `"svn安装成功"`  `>> $INSTALL_LOG `

`    ` `fi`

`     `

`    ` `echo`   `>> $INSTALL_LOG`

`    ` `sleep`  `2`

`    `

`}`

`#Jdk安装`

`function`  `jdkInstall {`

`    ` `echo`  `"############# Jdk8u101安装 #############"`  `>> $INSTALL_LOG`

`    `

`    ` `wget -c -P $FILE_PATH $URL$JDK_PCAKGE`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"jdk包下载成功"`  `>> $INSTALL_LOG || ` `echo`  `"@jdk包下载失败"`  `>> $INSTALL_LOG `

`    `

`    ` `cd`  `$FILE_PATH  && ` `tar`  `xf $JDK_PCAKGE`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"jdk包解压成功"`  `>> $INSTALL_LOG || ` `echo`  `"@jdk包解压失败"`  `>> $INSTALL_LOG `

`    ` `[ -d ` `/usr/local/jdk`  `] && ` `rm`  `-rf ` `/usr/local/jdk`

`    ` `mv`  `$JDK_DIRECTORY ` `/usr/local/jdk`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"jdk目录移动成功"`  `>> $INSTALL_LOG || ` `echo`  `"@jdk目录移动失败"`  `>> $INSTALL_LOG `

`    ` `echo`  `'export JRE_HOME=/usr/local/jdk'`  `>> ` `/etc/profile`

`    ` `echo`  `'export JAVA_BIN=/usr/local/jdk/bin'`  `>> ` `/etc/profile`

`    ` `echo`  `'export PATH=$JRE_HOME/bin:$PATH'`  `>> ` `/etc/profile`

`    ` `echo`  `'export CLASSPATH=.:$JRE_HOME/lib/dt.jar:$JRE_HOME/lib/tools.jar'`  `>> ` `/etc/profile`

`    ` `echo`  `'export JRE_HOME JAVA_BIN PATH CLASSPATH'`  `>> ` `/etc/profile`

`      `

`    ` `. ` `/etc/profile`

`    ` `echo`  `>> $INSTALL_LOG`

`    `

`}`

`#Tomcat安装`

`function`  `tomcatAllInstall {`

`    ` `function`  `tomcat_install {`

`    `

`        ` `echo`  `"############# Tomcat7.0.73安装 #############"`  `>> $INSTALL_LOG`

`        ` `wget -c -P $FILE_PATH $URL$TOMCAT_PCAKGE`

`        `

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"tomcat包下载成功"`  `>> $INSTALL_LOG || ` `echo`  `"@tomcat下载失败"`  `>> $INSTALL_LOG `

`          `

`        ` `cd`  `$FILE_PATH && ` `tar`  `zxf $TOMCAT_PCAKGE`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"tomcat包解压成功"`  `>> $INSTALL_LOG || ` `echo`  `"@tomcat包解压失败"`  `>> $INSTALL_LOG `

`          `

`        ` `[ -d ` `/usr/local/tomcat`  `] && ` `rm`  `-rf ` `/usr/local/tomcat`

`        ` `cp`  `-r $TOMCAT_DIRECTORY ` `/usr/local/tomcat`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"tomcat目录拷贝成功"`  `>> $INSTALL_LOG || ` `echo`  `"@tomcat目录拷贝失败"`  `>> $INSTALL_LOG `

`          `

`        ` `chmod`  `+x ` `/usr/local/tomcat/bin/` `*.sh`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"tomcat的sh文件添加权限成功"`  `>> $INSTALL_LOG || ` `echo`  `"@tomcat的sh文件添加权限失败"`  `>> $INSTALL_LOG `

`         `

`        ` `#/usr/local/tomcat/bin/startup.sh`

`        ` `#[ $? -eq 0 ] && echo "tomcat启动成功" >> $INSTALL_LOG || echo "@tomcat启动失败" >> $INSTALL_LOG `

`        `

`         ` `echo`  `>> $INSTALL_LOG`

`         ` `echo`  `>> $INSTALL_LOG    `

`    ` `}`

`    ` `tomcat_install`

`    `

`}`

`#Redis安装`

`function`  `redisInstall {`

`    ` `echo`  `"############# Redis3.0.5安装 ############# "`  `>> $INSTALL_LOG`

`    ` `wget -c -P $FILE_PATH $URL$REDIS_PCAKGE`

`    `

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"redis包下载成功"`  `>> $INSTALL_LOG || ` `echo`  `"@redis下载失败"`  `>> $INSTALL_LOG `

`    ` `cd`  `$FILE_PATH && ` `tar`  `xf $REDIS_PCAKGE`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"redis包解压成功"`  `>> $INSTALL_LOG || ` `echo`  `"@redis包解压失败"`  `>> $INSTALL_LOG `

`        `

`    ` `cd`  `$REDIS_DIRECTORY   `

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"redis进入目录成功"`  `>> $INSTALL_LOG || ` `echo`  `"@redis进入目录失败"`  `>> $INSTALL_LOG `

`        `

`    ` `make`  `MALLOC=libc     `

`    ` `[ $? -` `eq`  `0 ] && ` `cd`  `..;` `echo`  `"redis包配置成功"`  `>> $INSTALL_LOG || ` `echo`  `"@redis包配置失败"`  `>> $INSTALL_LOG `

`        `

`    ` `cd`  `$FILE_PATH/$REDIS_DIRECTORY`

`    ` `[ -d ` `/usr/local/redis`  `] && ` `rm`  `-rf ` `/usr/local/redis`

`    ` `make`  `PREFIX=` `/usr/local/redis`  `install`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"redis包编译成功"`  `>> $INSTALL_LOG || ` `echo`  `"@redis包编译失败"`  `>> $INSTALL_LOG `

`    ` `echo`  `'PATH=/usr/local/redis/bin:$PATH'`  `>> ` `/etc/profile`

`    ` `. ` `/etc/profile`

`    ` `[ -d ` `/usr/local/redis/conf`  `] || ` `mkdir`  `/usr/local/redis/conf`

`    ` `cp`  `redis.conf ` `/usr/local/redis/conf/`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"redis.conf配置文件拷贝成功"`  `>> $INSTALL_LOG || ` `echo`  `"@redis.conf配置文件拷贝失败"`  `>> $INSTALL_LOG `

`    ` `#sed -i "46s#/var/run/redis.pid#/usr/local/redis/conf/redis.pid#" /usr/local/redis/conf/redis.conf`

`    ` `#[ $? -eq 0 ] && echo "redis.pid修改路径成功" >> $INSTALL_LOG || echo "@redis.pid修改路径失败" >> $INSTALL_LOG `

`    `

`    ` `sed`  `-i ` `"192s#./#/usr/local/redis/conf/#"`  `/usr/local/redis/conf/redis` `.conf`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"redis.conf修改路径成功"`  `>> $INSTALL_LOG || ` `echo`  `"@redis.conf修改路径失败"`  `>> $INSTALL_LOG `

`    ` `echo`  `vm.overcommit_memory = 1 >> ` `/etc/sysctl` `.conf`

`    `

`    ` `#nohup redis-server /usr/local/redis/conf/redis.conf &> /dev/null &`

`    ` `#[ $? -eq 0 ] && echo "redis启动成功" >> $INSTALL_LOG || echo "@redis启动失败" >> $INSTALL_LOG`

`    `

`    ` `echo`   `>> $INSTALL_LOG`

`}`

`#Memcached安装`

`function`  `memAllInstall {`

`    ` `#安装libevent包`

`    ` `function`  `libevent_install {`

`        ` `echo`  `"############# Memcached1.4.24安装 #############"`  `>> $INSTALL_LOG`

`        `

`        ` `wget -c -P $FILE_PATH $URL$LIBEVENT_PCAKGE`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"libevent包下载成功"`  `>> $INSTALL_LOG || ` `echo`  `"@libevent下载失败"`  `>> $INSTALL_LOG `

`        ` `cd`  `$FILE_PATH && ` `tar`  `zxf $LIBEVENT_PCAKGE `

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"libevent包解压成功"`  `>> $INSTALL_LOG || ` `echo`  `"@bevent包解压失败"`  `>> $INSTALL_LOG `

`        `

`        ` `cd`  `$FILE_PATH/$LIBEVENT_DIRECTORY `

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"libevent进入目录成功"`  `>> $INSTALL_LOG || ` `echo`  `"@libevent进入目录失败"`  `>> $INSTALL_LOG `

`        ` `[ -d ` `/usr/local/libevent`  `] && ` `rm`  `-rf ` `/usr/local/libevent`

`        ` `.` `/configure`  `#默认装在/usr/local/lib目录里`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"libevent包配置成功"`  `>> $INSTALL_LOG || ` `echo`  `"@libevent包配置失败"`  `>> $INSTALL_LOG `

`        `

`        ` `make`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"libevent包编译成功"`  `>> $INSTALL_LOG || ` `echo`  `"@libevent包编译失败"`  `>> $INSTALL_LOG `

`  `

`        ` `make`  `install`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"libevent包安装成功"`  `>> $INSTALL_LOG || ` `echo`  `"@libevent包安装失败"`  `>> $INSTALL_LOG `

`        ` `echo`  `"/usr/local/lib"`  `> ` `/etc/ld` `.so.conf.d` `/libevent` `.conf`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"/usr/local/lib重定向成功"`  `>> $INSTALL_LOG || ` `echo`  `"@/usr/local/lib重定向失败"`  `>> $INSTALL_LOG `

`        ` `ldconfig`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"ldconfig成功"`  `>> $INSTALL_LOG || ` `echo`  `"@ldconfig失败"`  `>> $INSTALL_LOG `

`        `

`        ` `echo`   `>> $INSTALL_LOG`

`    ` `}`

`    ` `#安装memcached包`

`    ` `function`  `memcached_install {`

`        `

`        ` `wget -c -P $FILE_PATH $URL$MAKECACHE_PCAKGE`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"memcached包下载成功"`  `>> $INSTALL_LOG || ` `echo`  `"@memcached下载失败"`  `>> $INSTALL_LOG `

`        ` `cd`  `$FILE_PATH && ` `tar`  `zxf $MAKECACHE_PCAKGE`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"memcached包解压成功"`  `>> $INSTALL_LOG || ` `echo`  `"@memcached包解压失败"`  `>> $INSTALL_LOG `

`        `

`        ` `cd`  `$FILE_PATH/$MAKECACHE_DIRECTORY`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"memcached进入目录成功"`  `>> $INSTALL_LOG || ` `echo`  `"@memcached进入目录失败"`  `>> $INSTALL_LOG `

`        `

`        ` `[ -d ` `/usr/local/memcached`  `] && ` `rm`  `-rf ` `/usr/local/memcached`

`         ` `.` `/configure`  `--prefix=` `/usr/local/memcached`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"memcached包配置成功"`  `>> $INSTALL_LOG || ` `echo`  `"@memcached包配置失败"`  `>> $INSTALL_LOG `

`        ` `make`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"memcached包编译成功"`  `>> $INSTALL_LOG || ` `echo`  `"@memcached包编译失败"`  `>> $INSTALL_LOG `

`          `

`        ` `make`  `install`

`        ` `[ $? -` `eq`  `0 ] && ` `echo`  `"memcached包安装成功"`  `>> $INSTALL_LOG || ` `echo`  `"@memcached包安装失败"`  `>> $INSTALL_LOG `

`          `

`        ` `#/usr/local/memcached/bin/memcached -l $IP -u root -c 200 -m 500M -n 10 -f 2 -d`

`        ` `#[ $? -eq 0 ] && echo "memcached启动成功" >> $INSTALL_LOG || echo "@memcached启动失败" >> $INSTALL_LOG `

`        `

`        ` `echo`   `>> $INSTALL_LOG`

`    ` `}`

`    `

`    ` `libevent_install`

`    ` `memcached_install`

`}`

`#Nginx安装`

`function`  `nginxInstall {`

`    ` `echo`  `"############# Nginx1.10.2安装 #############"`  `>> $INSTALL_LOG`

`    ` `id`  `nginx &> ` `/dev/null`  `|| ` `useradd`  `nginx    `

`    ` `#pcre包下载解压`

`    ` `wget -c -P $FILE_PATH $URL$PCRE_PCAKGE`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"pcre包下载成功"`  `>> $INSTALL_LOG || ` `echo`  `"@pcre下载失败"`  `>> $INSTALL_LOG `

`    ` `cd`  `$FILE_PATH && ` `tar`  `xf $PCRE_PCAKGE -C ` `/usr/local`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"pcre包解压成功"`  `>> $INSTALL_LOG || ` `echo`  `"@pcre包解压失败"`  `>> $INSTALL_LOG `

`    ` `#openssl包下载解压`

`    ` `wget -c -P $FILE_PATH $URL$OPENSSL_PCAKGE`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"openssl包下载成功"`  `>> $INSTALL_LOG || ` `echo`  `"@openssl下载失败"`  `>> $INSTALL_LOG `

`    ` `tar`  `xf $OPENSSL_PCAKGE -C ` `/usr/local`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"openssl包解压成功"`  `>> $INSTALL_LOG || ` `echo`  `"@openssl包解压失败"`  `>> $INSTALL_LOG `

`    ` `#zlib包下载解压  `

`    ` `wget -c -P $FILE_PATH $URL$ZLIB_PCAKGE`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"zlib包下载成功"`  `>> $INSTALL_LOG || ` `echo`  `"@zlib下载失败"`  `>> $INSTALL_LOG `

`    ` `tar`  `xf $ZLIB_PCAKGE -C ` `/usr/local`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"zlib包解压成功"`  `>> $INSTALL_LOG || ` `echo`  `"@zlib包解压失败"`  `>> $INSTALL_LOG `

`    ` `#nginx包下载解压`

`    ` `wget -c -P $FILE_PATH $URL$NGINX_PCAKGE`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"nginx包下载成功"`  `>> $INSTALL_LOG || ` `echo`  `"@nginx下载失败"`  `>> $INSTALL_LOG `

`    ` `tar`  `-zxf $NGINX_PCAKGE`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"nginx包解压成功"`  `>> $INSTALL_LOG || ` `echo`  `"@nginx包解压失败"`  `>> $INSTALL_LOG `

`    `

`    ` `#进入目录`

`    ` `cd`  `$FILE_PATH/$NGINX_DIRECTORY`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"nginx进入目录成功"`  `>> $INSTALL_LOG || ` `echo`  `"@nginx进入目录失败"`  `>> $INSTALL_LOG `

`    `

`    ` `#删除旧目录`

`    ` `[ -d ` `/usr/local/nginx`  `] && ` `rm`  `-rf ` `/usr/local/nginx`

`    `

`    ` `#配置`

`    ` `.` `/configure`  `\`

`    ` `--prefix=` `/usr/local/nginx`  `\`

`    ` `--sbin-path=` `/usr/local/nginx/sbin/nginx`  `\`

`    ` `--conf-path=` `/usr/local/nginx/nginx` `.conf \`

`    ` `--error-log-path=` `/var/log/nginx/error` `.log \`

`    ` `--http-log-path=` `/var/log/nginx/access` `.log \`

`    ` `--pid-path=` `/var/run/nginx` `.pid \`

`    ` `--lock-path=` `/var/run/nginx` `.lock \`

`    ` `--http-client-body-temp-path=` `/var/cache/nginx/client_temp`  `\`

`    ` `--http-proxy-temp-path=` `/var/cache/nginx/proxy_temp`  `\`

`    ` `--http-fastcgi-temp-path=` `/var/cache/nginx/fastcgi_temp`  `\`

`    ` `--http-uwsgi-temp-path=` `/var/cache/nginx/uwsgi_temp`  `\`

`    ` `--http-scgi-temp-path=` `/var/cache/nginx/scgi_temp`  `\`

`    ` `--user=nginx \`

`    ` `--group=nginx \`

`    ` `--with-http_ssl_module \`

`    ` `--with-http_realip_module \`

`    ` `--with-http_addition_module \`

`    ` `--with-http_sub_module \`

`    ` `--with-http_dav_module \`

`    ` `--with-http_flv_module \`

`    ` `--with-http_mp4_module \`

`    ` `--with-http_gunzip_module \`

`    ` `--with-http_gzip_static_module \`

`    ` `--with-http_random_index_module \`

`    ` `--with-http_secure_link_module \`

`    ` `--with-http_stub_status_module \`

`    ` `--with-http_auth_request_module \`

`    ` `--with-threads \`

`    ` `--with-stream \`

`    ` `--with-stream_ssl_module \`

`    ` `--with-http_slice_module \`

`    ` `--with-mail \`

`    ` `--with-mail_ssl_module \`

`    ` `--with-` `file` `-aio \`

`    ` `--with-http_v2_module \`

`    ` `--with-ipv6 \`

`    ` `--with-pcre=` `/usr/local/` `$PCRE_DIRECTORY \`

`    ` `--with-zlib=` `/usr/local/` `$ZLIB_DIRECTORY \`

`    ` `--with-openssl=` `/usr/local/` `$OPENSLL_DIRECTORY`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"Nginx配置成功"`  `>> $INSTALL_LOG || ` `echo`  `"@Nginx配置失败"`  `>> $INSTALL_LOG `

`    ` `#编译`

`    ` `cd`  `$FILE_PATH` `/nginx-1` `.10.2`

`    ` `make`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"Nginx编译成功"`  `>> $INSTALL_LOG || ` `echo`  `"@Nginx包编译失败"`  `>> $INSTALL_LOG `

`      `

`    ` `#安装`

`    ` `cd`  `$FILE_PATH` `/nginx-1` `.10.2`

`    ` `make`  `install`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"nginx安装成功"`  `>> $INSTALL_LOG || ` `echo`  `"@Nginx安装失败"`  `>> $INSTALL_LOG `

`    ` `#w创建目录`

`    ` `[ -d  ` `/var/cache/nginx`  `] || ` `mkdir`  `/var/cache/nginx`  `-p`

`    `

`    ` `#启动服务`

`    ` `#/usr/local/nginx/sbin/nginx`

`    ` `#[ $? -eq 0 ] && echo "Nginx启动成功" >> $INSTALL_LOG || echo "@Nginx启动失败" >> $INSTALL_LOG `

`    `

`    ` `echo`  `>> $INSTALL_LOG`

`        `

`}`

`function`  `mysqlInstall {`

`    ` `echo`  `"############# MySQL5.6.21rpm包安装 ############# "`  `>> $INSTALL_LOG`

`    `

`    ` `#删除服务器的旧MySQL数据库`

`    ` `rpm -qa | ` `grep`  `mysql-libs && yum -y remove mysql-libs`

`    ` `rpm -qa | ` `grep`  `mysql-server && yum -y remove mysql-server`

`    ` `rpm -qa | ` `grep`  `mysql-client && yum -y remove mysql-client`

`    ` `-ech`

`    ` `#安装MySQL5.6.21`

`    ` `cd`  `$FILE_PATH`

`    `

`    ` `wget -c -P $FILE_PATH $URL{$MYSQLSERVER_PCAKGE,$MYSQLDEVEL_PCAKGE,$MYSQLCLIENT_PCAKGE}`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"mysql-server,mysql-devel,mysql-client包下载成功"`  `>> $INSTALL_LOG || ` `echo`  `"mysql-server,mysql-devel,mysql-client包下载失败"`  `>> $INSTALL_LOG `

`    `

`    ` `yum -y ` `install`  `$MYSQLSERVER_PCAKGE $MYSQLDEVEL_PCAKGE $MYSQLCLIENT_PCAKGE`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"mysql-server,mysql-devel,mysql-client安装成功"`  `>> $INSTALL_LOG || ` `echo`  `"@mysql-server,mysql-devel,mysql-client安装失败"`  `>> $INSTALL_LOG `

`    `

`    ` `[ -f ` `/etc/my` `.cnf ] && ` `mv`  `/etc/my` `.cnf ` `/etc/my` `.cnf.old`

`    `

`    ` `mv`  `/usr/my` `.cnf ` `/etc/my` `.cnf`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"my.cnf移动成功"`  `>> $INSTALL_LOG || ` `echo`  `"my.cnf移动失败"`  `>> $INSTALL_LOG`

`    `

`    ` `service mysql start`

`    ` `[ $? -` `eq`  `0 ] && ` `echo`  `"服务启动成功"`  `>> $INSTALL_LOG || ` `echo`  `"mysql服务启动失败"`  `>> $INSTALL_LOG`

`    `

`    ` `####################################################MySQL5.6注意事项################################################################`

`    ` `#cat /root/.mysql_secret             #初次安装好MySQL的密码`

`    ` `#mysql -uroot -p输入初次安装好MySQL的密码  #登陆MySQL`

`    ` `#update mysql.user set password=password('123') where host='localhost' and user='root'; #需要先修改好密码才能执行sql命令`

`}`

`#检查服务`

`function`  `checkService { `

`    `

`    ` `#Svn检查`

`    ` `echo`