闲来无事，自己写了一个MySQL进程检查的脚本。想想初学编程时候到处去网上搜的经历，忽然想笑。我是运维工程师，我也想说：“I am a Coder!”。

#!/bin/bash

#DATE 2013/11/25

#MAIL gccmx@163.com

#FUNCTION check the mysql status,if not run start mysql.

#Create by Chenchao Gao

checkMysql(){

CMDCHECK=`lsof -i:3306 &>/dev/null`

Port="$?"

PIDCHECK=`ps aux|grep mysqld|grep -v grep`

PID="$?"

if [ "$Port" -eq "0" -a "$PID" -eq 0 ];then

return 200

else

return 500

fi

}

startMysql(){

/etc/init.d/mysqld start

}

checkMysql

if [ $? == 200 ];then

echo "Mysql is running..."

else

startMysql

checkMysql

if [ $? != 200 ];then

while true

do

killall mysqld

sleep 2

[ $? != 0 ]&&break

done

startMysql

fi

fi

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