1.编写定时脚本

1.1 linux系统

vi dbback.sh 

#!/bin/sh
home=/usr/local/mysql
now=date +%Y%m%d
cd $home/back
echo "You are in backup dir:" %home%
#echo $home/back/$now
$home/bin/mysqldump -u{username} -p{passwd} dbname > $home/back/$now.sql
echo "Your database backup successfully completed"

1.2 windows 系统

新建文件dbback.bat

set home=D:\mysql
set backDir=H:\db\zentao
set now=%date:~0,4%%date:~5,2%%date:~8,2%
cd %backDir%
echo "You are in backup dir:" $home
echo %backDir%\%now%
%home%\bin\mysqldump.exe -uroot -pqwaszxer -h 10.110.1.251 zentao > %backDir%\%now%.sql
echo "Your database backup successfully completed"

2.定义定时任务

2.1 linux 系统

crontab -e 

5 1 * /usr/local/mysql/dbback.sh

2.2 windows系统

打开控制面板——》管理工具——》任务计划程序