shell脚本测试本地局域网

#!/bin/bash
for i in `seq 1 252`
do
        ping -c 1 192.168.111.$i >/dev/null
        if [ $? -eq 0 ]
        then
                echo "192.168.111.$i成功"
        else
                echo "192.168.111.$i失败" >>/root/ab.sh
        fi
done