设计一个脚本，监控远程的一台机器(假设ip为123.23.11.21)的存活状态，当发现宕机时发一封邮件给你自己。

#!/bin/bash
#Remote monitoring.If the network is broken,email me~


ping  -c10 www.baidu.com > 33.log

while  [  "1"  =  "1"  ]
do
   t=$( awk  '{print $1}'  33.log)
   if  [ ! -z $($t) ]; then
        echo " "
        sleep  30
   else
        break ;
   fi
done
   echo  "DiaoXianLe"  |mail -s  "down"  [email protected]