Linux 利用Shell命令行获取匹配需要的信息，读取IP，读取MAC，CPU信息，CPU负载等等信息

落日映苍穹つ 2022-11-22 05:12 153阅读 0赞

### CPU一分钟平均负载 ###

cat /proc/loadavg | awk '\{print $1\}'

![20201103153345846.png][]

### CPU五分钟平均负载 ###

cat /proc/loadavg | awk '\{print $2\}'

![20201103153440374.png][]

### CPU一刻钟平均负载 ###

cat /proc/loadavg | awk '\{print $3\}'

![20201103153512286.png][]

### CPU采样时刻的间隔 ###

cat /proc/loadavg | awk '\{print $4\}'

![20201103153534741.png][]

### CPU最大线程的数目 ###

cat /proc/loadavg | awk '\{print $5\}'

![20201103153605713.png][]

### 获取系统运行时间（秒） ###

cat /proc/uptime | awk '\{print $1\}'

![20201103163322288.png][]

### 获取系统空闲时间（秒） ###

cat /proc/uptime | awk '\{print $2\}'

![20201103163346126.png][]

### 获取内核版本 ###

cat /proc/sys/kernel/version

![20201103163450924.png][]

### 获取内核发行版本 ###

cat /proc/sys/kernel/osrelease

![20201103163532701.png][]

### 获取系统类型 ###

cat /proc/sys/kernel/ostype

### ![202011031636219.png][] ###

### 内存总数单位KB ###

cat /proc/meminfo | head -n 1 | awk '\{print $2\}'

![20201103154331838.png][]

### 空闲内存总数单位KB ###

sed -n '2,2p' /proc/meminfo | awk '\{print $2\}'

![20201103154857925.png][]

### 使用内存总数单位KB ###

sed -n '3,3p' /proc/meminfo | awk '\{print $2\}'

![20201103154935970.png][]

### 获取CPU串号 ###

cat /proc/cpuinfo | grep Serial | grep -v grep | awk '\{print $3\}'

![20201103160106638.png][]

### 获取指定格式的日期时间 ###

date "+%Y-%m-%d %H:%M:%S"  
date -s "2020-02-12 23:33:39"    // 设置时间

![20201103160204549.png][]

### 获取指定网卡的IP地址 ###

// 列出eth0网卡的信息 匹配内容中有net add、Bcast的行，读取第二段，删除其中的addr:  
ifconfig eth0 |grep 'inet add' | grep 'Bcast'| awk '\{print $2\}' | sed 's/addr://g'

![20201103160443990.png][]

### 获取指定网卡的MAC地址 ###

ifconfig eth0 | grep Link |grep HWaddr | grep encap | grep -v grep | awk '\{print $5\}'

![20201103160621118.png][]

### 获取指定网卡的广播地址 ###

ifconfig eth0 |grep 'inet add' | grep 'Bcast'| awk '\{print $3\}' | sed 's/Bcast://g'

![20201103161004912.png][]

### 获取指定网卡是否插入网线（插上1，拔掉0） ###

cat /sys/class/net/eth0/carrier

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NuaWNmaG51aQ_size_16_color_FFFFFF_t_70][]

### 查询网卡是否连接外网（连接输出1） ###

ping www.baidu.com -c 1 | tail -n 1 | grep min | awk '\{print 1\}'

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NuaWNmaG51aQ_size_16_color_FFFFFF_t_70 1][]

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