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,ifnot 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
return200
else
return500
fi
}
startMysql(){
/etc/init.d/mysqld start
}
checkMysql
if[ $? == 200];then
echo "Mysql is running..."
else
startMysql
checkMysql
if[ $? != 200];then
whiletrue
do
killall mysqld
sleep 2
[ $? != 0]&&break
done
startMysql
fi
fi