Linux平台卸载Mysql

1：检查是否安装了MySQL组件。

[root@DB-Server init.d]# rpm -qa | grep -i mysql
MySQL-devel-5.6.23-1.linux_glibc2.5
MySQL-client-5.6.23-1.linux_glibc2.5
MySQL-server-5.6.23-1.linux_glibc2.5

如上所示，说明安装了MySQL 5.6.23这个版本的client、server、devel三个组件。

2：卸载前关闭MySQL服务

[root@DB-Server init.d]# service mysql status
 MySQL running (25673)[  OK  ]
[root@DB-Server init.d]# service mysql stop
 Shutting down MySQL..[  OK  ]
[root@DB-Server init.d]# service mysql status
 MySQL is not running[FAILED]

3. 收集MySQL对应的文件夹信息

[root@DB-Server init.d]# find / -name mysql
/etc/rc.d/init.d/mysql
/etc/logrotate.d/mysql
/var/lock/subsys/mysql
/var/lib/mysql
/var/lib/mysql/mysql
/usr/include/mysql
/usr/include/mysql/mysql
/usr/bin/mysql
/usr/share/mysql
/usr/lib64/mysql

4：卸载删除MySQL各类组件

[root@DB-Server init.d]# 
[root@DB-Server init.d]# rpm -ev MySQL-devel-5.6.23-1.linux_glibc2.5
[root@DB-Server init.d]# rpm -ev MySQL-server-5.6.23-1.linux_glibc2.5
You have new mail in /var/spool/mail/root
[root@DB-Server init.d]# rpm -ev MySQL-client-5.6.23-1.linux_glibc2.5
[root@DB-Server init.d]#

5：删除MySQL对应的文件夹

[root@DB-Server init.d]# whereis mysql
mysql:
[root@DB-Server init.d]# find / -name mysql
/var/lib/mysql
/var/lib/mysql/mysql
/usr/lib64/mysql
[root@DB-Server init.d]# rm -rf /var/lib/mysql
[root@DB-Server init.d]# rm -rf /var/lib/mysql/mysql
[root@DB-Server init.d]# rm -rf /usr/lib64/mysql
[root@DB-Server init.d]#

6：删除mysql用户及用户组

[root@DB-Server ~]# more /etc/passwd | grep mysql
mysql:x:101:501::/home/mysql:/bin/bash
[root@DB-Server ~]# more /etc/shadow | grep mysql
mysql:!!:16496::::::
[root@DB-Server ~]# more /etc/group | grep mysql
mysql:x:501:
[root@DB-Server ~]# userdel mysql
[root@DB-Server ~]# groupdel mysql
groupdel: group mysql does not exist
[root@DB-Server ~]#

7：确认MySQL是否卸载删除

[root@DB-Server init.d]# rpm -qa | grep -i mysql

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