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本文主要介紹了linux下卸載mysql 數據庫的方法，不知道linux下卸載mysql數據庫的小伙伴們可以學習一下，本文具有一定的參考價值，希望能幫助到大家。

如何在Linux下卸載MySQL數據庫呢？下面總結、整理了一下Linux平臺下卸載MySQL的方法。 MySQL的安裝主要有三種方式：二進制包安裝（using Generic Binaries）、RPM包安裝、源碼安裝。對應不同的安裝方式，卸載的步驟有些不同。文章中如有不足或不對的地方，敬請指出或補充！

RPM包安裝方式的MySQL卸載

1、檢查是否安裝了MySQL組件。

[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

Linux下卸載MySQL數據庫實例教程

如上所示，說明安裝了MySQL 5.6.23這個版本的client、server、devel三個組件。

2、卸載前關閉MySQL服務

2.1 方法1

[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]

Linux下卸載MySQL數據庫實例教程

2.2 方法2

[root@DB-Server?init.d]#?./mysql?status  ?MySQL?running?(26215)[?OK?]  [root@DB-Server?init.d]#?./mysql?stop  ?Shutting?down?MySQL..[?OK?]  [root@DB-Server?init.d]#?./mysql?status  ?MySQL?is?not?running[FAILED]  [root@DB-Server?init.d]#

Linux下卸載MySQL數據庫實例教程

[root@DB-Server?init.d]#?chkconfig?--list?|?grep?-i?mysql  mysql?0:off?1:off?2:on?3:on?4:on?5:on?6:off?  [root@DB-Server?init.d]#

3. 收集MySQL對應的文件夾信息

[root@DB-Server init.d]# whereis mysql

mysql: /usr/bin/mysql /usr/include/mysql /usr/share/mysql /usr/share/man/man1/mysql.1.gz

最好實用find命令查看MySQL數據庫相關的文件，方便后面徹底刪除MySQL。

[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

Linux下卸載MySQL數據庫實例教程

4、卸載刪除MySQL各類組件

[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]#

Linux下卸載MySQL數據庫實例教程

5、刪除MySQL對應的文件夾

檢查各個MySQL文件夾是否清理刪除干凈。

[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、刪除mysql用戶及用戶組

如果有必要，刪除mysql用戶以及mysql用戶組。

[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、確認MySQL是否卸載刪除

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

二進制包/源碼安裝方式的MySQL卸載

如果是采用二進制包安裝的MySQL，那么你用下面命令是找不到任何MySQL組件的。所以如果你不知道MySQL的安裝方式，千萬不要用下面命令來判別是否安裝了MySQL

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

1、檢查MySQL服務并關閉服務進程。

首先通過進程查看是否有MySQL的服務的狀態, 如下所示，MySQL服務是啟動的。

[root@DB-Server?init.d]#?ps?-ef?|?grep?mysql  root???4752?4302?0?22:55?pts/1??00:00:00?more?/etc/init.d/mysql.server  root???7176???1?0?23:23?pts/1??00:00:00?/bin/sh?/usr/local/mysql/bin/mysqld_safe?--datadir=/usr/local/mysql/data?--pid-file=/usr/local/mysql/data/DB-Server.localdomain.pid  mysql???7269?7176?15?23:23?pts/1??00:00:01?/usr/local/mysql/bin/mysqld?--basedir=/usr/local/mysql?--datadir=/usr/local/mysql/data?--plugin-dir=/usr/local/mysql/lib/plugin?--user=mysql?--log-error=/usr/local/mysql/data/DB-Server.localdomain.err?--pid-file=/usr/local/mysql/data/DB-Server.localdomain.pid  root???7321?4302?0?23:23?pts/1??00:00:00?grep?mysql  [root@DB-Server?init.d]#?/etc/init.d/mysql.server?status  MySQL?running?(7269)[?OK?]  [root@DB-Server?init.d]#?/etc/init.d/mysql.server?stop  Shutting?down?MySQL..[?OK?]  [root@DB-Server?init.d]#?/etc/init.d/mysql.server?status  MySQL?is?not?running[FAILED]  [root@DB-Server?init.d]#

Linux下卸載MySQL數據庫實例教程

2、查找MySQL的安裝目錄并徹底刪除

[root@DB-Server?init.d]#?whereis?mysql  ?mysql:?/usr/local/mysql  ?[root@DB-Server?init.d]#?find?/?-name?mysql  ?/var/spool/mail/mysql  ?/usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/include/mysql  ?/usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/bin/mysql  ?/usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/data/mysql  ?/usr/local/mysql

Linux下卸載MySQL數據庫實例教程

[root@DB-Server?init.d]#?rm?-rf?/usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/?  [root@DB-Server?init.d]#?rm?-rf?/usr/local/?  [root@DB-Server?init.d]#?rm?-rf?/var/spool/mail/mysql?  [root@DB-Server?init.d]#

3、刪除一些配置文件配置文件一般有/etc/my.cnf 或/etc/init.d/mysql.server，視具體安裝配置情況而定。

4、刪除MySQL用戶以及用戶組

[root@DB-Server?~]#?id?mysql?  uid=101(mysql)?gid=501(mysql)?groups=501(mysql)?context=root:system_r:unconfined_t:SystemLow-SystemHigh?  [root@DB-Server?~]#?userdel?mysql

參考資料：Linux下徹底卸載mysql詳解