Linux shell command cut All In One

cut 截取指定符号等号后面的字符串

cut 截取等号后面的字符串

# 获取 env
$ env
# 获取登录当前用户信息
$ env | grep USER
$ env | grep USER | cut -d "=" -f 2

# 获取登录当前用户信息
$ whomai
$ echo $USER

demos

#!/usr/bin/env bash
# coding: utf8

bug='throttled=0x50005'
state=$(vcgencmd get_throttled)
# echo $state

# 没有空格 bug ❌
# if [$state == $bug]
# 有空格 OK ✅
# if [ $state == $bug ]
# 有空格 OK ✅
if [ $state == 'throttled=0x50005' ]
then
  echo "❌ Error"
else
  echo "✅ OK"
fi

WIFI=$(ifconfig | grep "192.168")
echo $WIFI

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标签：shell,OK,throttled,echo,state,cut,command,env,bug
From： https://www.cnblogs.com/xgqfrms/p/17456013.html