第四次测试题

痛定思痛。 2022-01-11 13:59 157阅读 0赞

1.  拿到本机的ip地址，只显示ip地址

ifconfig | grep inet | sed -n '1p' | sed 's/\[\[:space:\]\]+inet.//g' | sed 's/netmask.\*$//g'  
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1.  查看网络连接情况，找到与80端口有关的

netstat -pantu | grep 80

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1.  找到与httpd相关的进程信息

ps aux | grep httpd

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1.  显示虚拟内存使用情况

vmstat

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1.  不解压查看test.xz的原文本内容

xzcat test.xz

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1.  yum卸载apache服务器

yum remove httpd

1.  删除test1文件每行行首的空格

sed 's/^\[\[:space:\]\]+//g' test

![第四次测试题][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 5]

8.编辑crontab，要求每周六，周日的1点10分重启apache

crontab -e 或者 vim /etc/crontab

10 1  6,0 /usr/local/apache24/bin/apachectl restart

9./etc/passwd按照uid数字大小进行排序

cat /etc/passwd | sort -t ':' -k3 -n

10.查看系统当前apache进程个数

ps aux | grep httpd | grep -v grep | wc -l

![第四次测试题][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 6]

脚本题：  
1.写一个脚本，根据用户输入分别检测磁盘使用情况，内存使用情况，和swap使用情况，接收用户输入，根据用户输入选择执行不同的检测项目

d|D) show disk usages.  
m|M) show memory usages.  
s|S) show swap usages.

打印用法，  
当输入为其他时，显示“unknown”，不退出脚本,再次请用户输入，执行检测  
执行完一次检测时，不退出脚本，再次接受用户输入，执行检测  
只有用户输入“quit”时，才退出脚本。

\#!/bin/bash

flag=

while \[\[ -z $flag \]\] ; do

echo -e "\[ d | D \].磁盘使用情况\\n\[ m | M \].内存使用情况\\n\[ s | S \].swap"

read -p "Please input alpha \[ d | D \] or \[ m | M \] or \[ s | S \] or \[ quit \]: " option

echo -e "Program exit~~\n"
        exit 2
        ;;

\*)  
echo "unknown"  
echo -e "\\n\\n"  
sleep 0.5  
esac

done

![第四次测试题][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 7]

转载于:https://blog.51cto.com/14239091/2382501

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