mysql数据库定时自动备份命令

新建shell脚本文件bak.sh

命令vim /usr/local/dbbak/bak.sh

编辑内容如下

#!/bin/bash

 

# 数据库备份脚本

# author:chinoukin 2017-09-11

 

date=$(date +%Y%m%d)

 

db=jeesite

user=root

pass=

 

filename=$db'_'$date'.sql'

bakpath=/home/dbbak/$db

 

keepdays=30

 

 

echo "mysqldump start... "

 

if [ -e $bakpath ]

        then

                echo $bakpath is exists

else

        mkdir -p $bakpath

        echo dir $bakpath created

fi

 

 

if [ -d $bakpath ]

        then

                mysqldump -u$user -p$pass $db &> $bakpath/$filename

 

                find $bakpath -mtime +$keepdays -name '*.sql' -exec rm -rf {} \;

 

                echo "mysqldump done."

 

fi

 

修改脚本执行权限

命令：chmod 755 bak.sh

添加至定时任务

命令：crontab -e 编辑内容如下

#每日凌晨3点触发

0 3 * * * /usr/local/dbbak/bak.sh