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shell实现自动备份mysql数据库

2010-08-20 10:04:20| 分类： mysql | 标签： |举报 |字号大中小订阅

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利用系统crontab来定时执行备份文件，按日期对备份结果进行保存，达到备份的目的。

1、创建保存备份文件的路径/mysqldata

#mkdir /usr/local/mysqldata

2、创建/usr/sbin/bakmysql文件

#vim /usr/sbin/bakmysql

输入

rq=` date +%Y%m%d `

mysqldump --database 要备份的数据库名 -u root -p密码 > /usr/local/mysqldata/mysql$rq.sql

3、修改文件属性，使其可执行

# chmod +x /usr/sbin/bakmysql

4、修改/etc/crontab

#vi /etc/crontab

在下面添加

01 23 * * * root /usr/sbin/bakmysql

表示每天23点钟1分执行备份

5、重新启动crond

# /etc/init.d/crond restart

完成。

这样每天你在/usr/local/mysqldata可以看到这样的文件

mysql20080507.sql

你直接下载就可以了。

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