linux脚本编程中用ping命令判断网络状态,启用和未启用的状态都一次性输出

fot IP in `cat IP.txt`

    do

        ping ${IP} -c 2 

        if  [  "$?" -ne "0"  ]

            then

                echo "${IP} is down"  >>output.txt

            else

                echo "${IP} is  up"  >>output.txt

        fi

done

IP写入IP.TXT文件

do

if [ `ping -c 1 192.168.0.2|grep 100%|wc -l` -ne 0 ]then

echo diaoxian_192.168.0.2 >>log2

fi

done