mysql数据库自动备份到另一台服务器

CentOS 6.7

服务器：192.168.1.112到192.168.1.111

主要分以下三步：

1.先配置免密登陆

ssh-keygen

ssh-copy-id 192.168.1.111

2.shell脚本如下

#!/bin/sh

# mysql_backup.sh: backup mysql databases and keep newest 5 days backup.

#

# Last updated: 2017年8月8日

# ----------------------------------------------------------------------

# This is a free shell script under GNU GPL version 2.0 or above

# Copyright (C) 伟岸

# mysq数据备份

# ----------------------------------------------------------------------

# mysql地址：/usr/local/mysql/

# mysql启动命令：service mysqld start

# -----------------------------

#declare

MKDIR="/bin/mkdir"

RM="/bin/rm"

MV="/bin/mv"

GZIP="/bin/gzip"

#file path

db_user="root"

db_passwd="root"

db_host="localhost"

# 备份目录

backup_dir="/home/mysql/mybackup"

# 获取当前时间

time="$(date +"%Y-%m-%d")"

# mysql, mysqldump and some other bin's path

MYSQLDUMP="/usr/local/mysql/bin/mysqldump"

# check the directory for store backup is writeable

test ! -w $backup_dir && echo "Error: $backup_dir is un-writeable." && exit 0

# 要备份数据库名称

db="test"

$MYSQLDUMP -u $db_user -h $db_host -p$db_passwd $db | $GZIP -9 > "$backup_dir/$time.$db.gz"

#发送备份文件到另一台服务器上

scp -r $backup_dir/$time.$db.gz 192.168.1.111:/home/mysql/mysqlbackup/

exit 0;

3.写crontab脚本(不懂安装百度一下)