Linux shell 检测内网中存活主机 - 网站安全 - 自学

#!/bin/bash # Simple SHELL script for Linux and UNIX system monitoring with # ping command # code by robert for ((a=1;a<=255;a++));do HOSTS="192.168.132.$a" COUNT=1 for myhost in $HOSTS do   count=$(ping -c $COUNT $myhost | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }') if [ $count -eq 0 ]; then # 100% failue         echo "$myhost is down (ping failed)"                 else                         echo "$myhost is up"                 fi done done 摘自 Robert's Blog

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