监控内存并发邮件

监控内存并发邮件

1空闲内存

free -m | awk 'NR==3 {print $NF}'

2邮件配置

#/etc/mail.rc
set from oldboy@163.com smtp=smtp.163.com
set smtp-auth-user=oldboy smtp-auth-password=oldboy123 smtp-auth=login

3脚本

#!/bin/bash

FreeMem=`free -m|awk 'NR==3 {print $NF}'`

CHARS="Current memory is  $FreeMem."

if [ $FreeMem -lt 1000 ]

  then

    echo $CHARS|tee /tmp/messages.txt

    #mail -s "`date +%F-%T`$CHARS" 490004487@qq.com </tmp/messages.txt

fi

4定时