Home Database Mysql Tutorial MySQL 定时备份操作

MySQL 定时备份操作

Jun 07, 2016 pm 05:29 PM
mysql backup

1、创建保存备份文件的路径/mysqldata #mkdir /bak/mysqlbak 2、创建/usr/sbin/bakmysql文件 #vi /usr/sbin/bakmysql.sh

1、创建保存备份文件的路径/mysqldata

  #mkdir /bak/mysqlbak

2、创建/usr/sbin/bakmysql文件

  #vi /usr/sbin/bakmysql.sh

3、写入脚本如下脚本 

注意,如果是你的mysql密码是带有特殊字符的,比如!@# ,那么需要在 -p参数后面加上‘’,把密码放在‘’中,'123!@#'

#!/bin/bash
#Name:bakmysql.sh
#This is a ShellScript For Auto DB Backup and Delete old Backup
backupdir=/bak/mysqlbak
time=` date +%Y%m%d%H `
mysqldump --opt -h192.168.1.1 -uroot -p123456 dbname | gzip > $backupdir/mo$time.sql.gz
#
find $backupdir -name "mo*.sql.gz" -type f -mtime +5 -exec rm {} \; > /dev/null 2>&1

脚本解析:

backupdir 数据库备份路径

time时间点

mysqldump :mysql备份工具,--opt -h 远程执行备份操作,,

dbname:数据库名称,

gzip:压缩成gzip格式的。

最后一个行是保证5最新个备份文件

4、定时任务

修改/etc/crontab

#vi /etc/crontab

在下面添加

01 3 * * * root /usr/sbin/bakmysql

 表示每天3点钟执行备份

5、重新启动crond

  # /etc/rc.d/init.d/crond restart (RedHat)

#/etc/init.d/cron  restart (Ubuntu)

完成。

手工恢复:

先解压gz文件

gunzip  xxx.gz

mysql -u root -p --default-character-set=utf8

use dbname

source /root/xx.sql

搞定

so esay ,那里不会点那里。

linux

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