12345678#!/bin/bash service=$( systemctl is-active sshd ) if [ "$service" == active ];then echo "$service is running" else sys……

123456789101112131415161718192021222324252627282930313233343536373839404142434445正则表达式是一种用来匹配和处理文本的工具，而扩展正则（Extended Regu……

12345678910111213141516171819202122232425262728#!/bin/env bash home_dir=/home/yunwei #判断yunwei账号的秘钥是否存在 [ ! -f $home_dir/.ssh/id_rsa.……

123ifconfig ens192 |grep ether| tr -s " "| cut -d ' ' -f3 | sed 's/^/MAC ADDRESS IS: /' MAC ADDRESS IS: 00:0c:29:cf:d6:b1 # tr -s 将空格字……