CentOS下MySQL的完全卸載

1：查看MySQL是否安裝:

方式1: [plain] view plain copy

[root[@localhost](https://my.oschina.net/u/570656) usr]# yum list installed mysql*  
Loaded plugins: fastestmirror  
Loading mirror speeds from cached hostfile  
 * base: mirrors.yun-idc.com  
 * extras: mirror.neu.edu.cn  
 * updates: mirrors.yun-idc.com  
Installed Packages  
MySQL-client.x86_64   5.6.27-1.el6    installed  
MySQL-devel.x86_64    5.6.27-1.el6    installed  
MySQL-server.x86_64   5.6.27-1.el6    installed  
[root[@localhost](https://my.oschina.net/u/570656) usr]#

方式2( -i :不區分大小寫)： [plain] view plain copy

[root[@localhost](https://my.oschina.net/u/570656) usr]# rpm -qa | grep -i mysql  
MySQL-server-5.6.27-1.el6.x86_64  
MySQL-client-5.6.27-1.el6.x86_64  
MySQL-devel-5.6.27-1.el6.x86_64  
[root[@localhost](https://my.oschina.net/u/570656) usr]#   

[root[@localhost](https://my.oschina.net/u/570656) usr]# rm -rf /var/lib/mysql  

[root@localhost usr]# rm /etc/my.cnf

若是裝了mysql-devel(其餘同樣add command)，卸載爲： [plain] view plain copy

[root@Tony_ts_tian init.d]# yum remove mysql mysql-devel mysql-server mysql-libs compat-mysql51

注（例如）: mysql-5.5.39-1.el6.remi.x86_64 mysql-libs-5.5.39-1.el6.remi.x86_64 compat-mysql51-5.1.54-1.el6.remi.x86_64 mysql-server-5.5.39-1.el6.remi.x86_64 卸載2{繼續，1，2選擇一種（此處爲介紹）：}: [plain] view plain copy

[root@localhost mysql]# rpm -aq | grep -i mysql  
MySQL-server-5.6.27-1.el6.x86_64  
MySQL-client-5.6.27-1.el6.x86_64  
MySQL-devel-5.6.27-1.el6.x86_64  
[root@localhost mysql]# rpm -e MySQL-server-5.6.27-1.el6.x86_64  
[root@localhost mysql]# rpm -e MySQL-client-5.6.27-1.el6.x86_64  
[root@localhost mysql]# rpm -e MySQL-devel-5.6.27-1.el6.x86_64  
[root@localhost rc.d]# cd /var/lib/  
[root@localhost lib]# rm -rf mysql/

注:刪除MySQL數據庫目錄(關鍵) ，不然password不更新（默認安裝，若是自定義安裝路徑和連接路徑ln -s ……請刪除。） rm -rf /var/lib/mysql 卸載3： [plain] view plain copy

[root@localhost usr]# whereis mysql  
mysql: /usr/lib64/mysql  
[root@localhost usr]# rm -rf /usr/lib64/mysql

注：find / -name mysql 注：清空相關mysql的全部目錄以及文件和其餘配置和設置等。若是有，則刪除。也必須考慮其餘軟件不去影響。 rm -rf /usr/lib/mysql rm -rf /usr/share/mysql 卸載4： [plain] view plain copy

[root@localhost usr]# rm –rf /usr/my.cnf  
[root@localhost usr]# rm -rf /root/.mysql_sercret

卸載5（自啓服務）： [plain] view plain copy

[root@localhost usr]# chkconfig --list | grep -i mysql  
[root@localhost usr]# chkconfig --del mysqld

[plain] view plain copy

此處刪除看本身設置:mysql/mysqld