#!/bin/bash

while [ 1 -eq 1 ]   #一直循环
do
ping 192.168.1.116 -c 1|grep -q "time="       #ping通有time=    $?=0   不同$?=1
if [ $? -eq 0 ]
then
echo "tong 0"  
else
echo " butong 1"   #  可以mail邮件通知
fi
done

ping.sh