weixin_45537987的博客

方式一：数组 #!/bin/bash #使用数组做ping失败三次的判断# while read ip do declare -A fail for i in seq 3 do ping -c1 -W1 $ip &>/dev/null #如果一次就成功，则echo:up,跳出循环，否则数组fail[ip]++ if [ ?−eq0];thenecho"? -eq 0 ];then echo "?−eq0];thenecho"ip is ip…" break else let f