Home Database Mysql Tutorial 在Windows主机上定时备份远程VPS(CentOS)数据的批处理_MySQL

在Windows主机上定时备份远程VPS(CentOS)数据的批处理_MySQL

Jun 01, 2016 pm 01:22 PM
linux windows7 Host third party

CentOS

bitsCN.com 不过折腾 VPS 之后,就不只是要备份 MySQL 了,一些独立的站点数据也是需要备份的。
如果有靠谱的第三方 Linux 主机或类似 Amazon 的云存储,那就简单多了,Linux - Linux 的备份很方便。
不过我想在自己的 Windows7 下每天/周运行一次备份,就有了这个小工具。

大概的想法如下:
使用 Putty 自带的 plink.exe 连接到 VPS 上,运行备份并退出登录;
接着使用 Putty 自带的 pscp.exe 将备份复制到本机;
添加一个计划任务,每天/周自动运行一次,实现定时备份。


Windows 下负责触发备份的 index.bat
@echo off & setlocal ENABLEEXTENSIONS

:: 这里只是 SSH 连接和备份路径配置信息
:: 请同时修改同目录下 linux 文件中要备份的路径和 MySQL 数据库

:: SSH 相关信息
set SERVER=192.168.1.100
set PORT=22
set USER=root
set PASSWORD=password

:: 和同目录下 linux 文件中配置的路径对应
set BACKUP_PATH=/root/backup

:: 备份要下载到的本机位置(会自动创建)
set SAVE_PATH=D:/Backup/

:: ---------- 配置结束,以下请勿修改 ----------

:: 运行时变量
set EXE_SSH=%~dp0/exe/plink.exe
set EXE_SCP=%~dp0/exe/pscp.exe
set LINUX=%~dp0/linux

set YEAR=%date:~0,4%
set MONTH=%date:~5,2%
set DAY=%date:~8,2%
set TRUE_PATH=%SAVE_PATH%%YEAR%-%MONTH%-%DAY%/

:: 创建备份路径
echo Creating Backup Dir...
if not exist %TRUE_PATH% (
mkdir %TRUE_PATH% 2>nul
)
if not exist %TRUE_PATH% (
echo Backup path: %TRUE_PATH% not exists, create dir failed.
goto exit
)
echo Creating Backup Dir... Done.

:: 生成备份目录和文件
echo Connecting to remote server and creating backups...
%EXE_SSH% -C %USER%@%SERVER% -P %PORT% -pw %PASSWORD% -m %LINUX% 2>nul
echo Connecting to remote server and creating backups... Done.

:: 下载备份
echo Downloading backups...
%EXE_SCP% -pw %PASSWORD% -P %PORT% %USER%@%SERVER%:%BACKUP_PATH%/*.* %TRUE_PATH%
echo Downloading backups... Done.

:exit
echo Exit

由 index.bat 调用的 Linux 端命令

#!/bin/bash

PATH=/usr/local/sbin:/usr/bin:/bin

# ---------- 配置项,不要最后的 / ----------

# 备份文件存储的路径,请与 index.bat 中的 BACKUP_PATH 保持一致
BACKUP_PATH=/root/backup

# 要备份的文件或目录,多个以空格分隔
FILES="/www/cmstop /www/dbpma"

# mysqldump 可执行文件的全路径(如果可以直接执行 mysqldump 可不用全路径)
MYSQLDUMP=mysqldump

# 要备份的 MySQL 数据库,多个以空格分隔
DATABASES="mysql test"

# MySQL 用户名
USER=root

# MySQL 密码
PASSWD=

# ---------- 配置项结束,下面的不用修改 ----------

# 运行时变量
DATETIME=$(date -d now +%Y-%m-%d)
CURPATH=$(cd "$(dirname "$0")"; pwd)

# 创建备份目录
if [ ! -d $BACKUP_PATH ]; then
mkdir -p $BACKUP_PATH
fi

rm -fR $BACKUP_PATH/*

# 备份 MySQL 数据库
cd $BACKUP_PATH
for database in $DATABASES
do
if [ "$PASSWD" == "" ]; then
$MYSQLDUMP -u$USER $database > $database.$DATETIME.dump.sql
else
$MYSQLDUMP -u$USER -p$PASSWD $database > $database.$DATETIME.dump.sql
fi
tar czf $database.$DATETIME.dump.sql.tar.gz $database.$DATETIME.dump.sql
rm -f $database.$DATETIME.dump.sql
done

# 备份文件或目录
for file in $FILES
do
tar czf $file.$DATETIME.tar.gz $file
mv $file.$DATETIME.tar.gz $BACKUP_PATH
done

# 完成
cd $CURPATH
exit

下载完成之后不删除服务器上产生的备份文件,因为下一次备份前会自动清除。
下载和使用 下载地址
下载文件到你本机,解压到某个地方,然后根据上文的说明修改配置项;
由于 SSH 第一次登录需要添加 Key 到本机,这一步没法简单忽略,可行的办法是载入 Putty 的 Session,不过挺麻烦的,还是运行一次简单些,我们要执行一次 SSH 登录:

:: 切换到你解压到的目录,如 D:/VPS/:
cd /d D:/VPS/

:: 根据情况修改下面的参数
exe/plink.exe -C root@192.168.1.100 -P 22 -pw password

:: 等待一下,会提示是否将 Key 加入本机信任主机列表里面,输入 yes 就可以了。
yes

:: 这就进去了,输入点常用命令玩玩,输入 exit 退出。
exit

根据这一篇文章的介绍,添加一个定时执行的计划任务;
手动执行一下上面添加的计划任务或观察一个执行周期,看备份是否有效。
待改进
同之前的脚本一样,似乎还缺少一个自动删除多少天前备份的功能。bitsCN.com
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