本文共 1413 字，大约阅读时间需要 4 分钟。

1. 创建数据库

2. 设置远程访问权限

mysql> grant all on student.* to 'bob'@'192.168.100.60' identified by 'pwd@123';Query OK, 0 rows affected (0.01 sec)mysql> grant all on teacher.* to 'bob'@'192.168.100.60' identified by 'pwd@123';Query OK, 0 rows affected (0.00 sec)

3. 安装客户端MySQL

[root@centos06 ~]# yum -y install mariadb

4. 测试远程访问连接

[root@centos06 ~] mysqldump -ubob -ppwd@123 -h 192.168.100.30 --databases student > test.sql[root@centos06 ~] ls -lh test.sql

5. 创建备份目录

[root@centos06 ~]mkdir -p /mysql/data_bak/

6. 编写shell 脚本

#!/bin/bash#数据库逻辑备份#定义数据库连接、目标库信息USER ="bob"PASS="pwd@123"POST="192.168.100.30"CONN="-u $USER -p $PASS -h $POST"DB1="student"DB2="teacher"#定义备份目录DIR="/mysql/data_bak/"DUMP="/usr/local/mysql/bin/mysqldump"TIME=`date +%Y%m%d-%H%H`BAK_NAME1="$DB1-$TIME"BAK_NAME2="$DB3-$TIME"#导出sql脚本，进行打包cd $DIR$DUMP $CONN --databases $DB1 > $BAK_NAME1.sql$DUMP $CONN --databases $DB2 > $BAK_NAME2.sql/usr/bin/tar zcf $BAK_NAME1.tar.gz $BAK_NAME1.sql --remove &> /dev/null/usr/bin/tar zcf $BAK_NAME2.tar.gz $BAK_NAME2.sql --remove &> /dev/null

7. 添加脚本执行权限

[root@centos06 ~]# chmod +x mysql_bak.sh

8. 手动执行脚本测试

[root@centos06 ~]# ./mysql_bak.sh [root@centos06 ~]# ls -lh /mysql/data_bak/

9. 移动脚本到备份目录

[root@centos06 ~]# mv mysql_bak.sh /mysql/data_bak/[root@centos06 ~]# ls /mysql/data_bak/

10. 设置计划任务执行备份文件，每天凌晨4.50备份数据库

[root@centos06 ~]# crontab -e50      4       *       *       *       /mysql/data_bak/mysql_bak.sh

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