?方式1:
[root@localhost?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?usr]#
方式2( -i? :不區分大小寫)：
[root@localhost?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?usr]#
2、卸載MySQL
卸載1：
[root@localhost?usr]#?yum?remove?mysql?mysql-server?mysql-libs?compat-mysql51 [root@localhost?usr]#?rm?-rf?/var/lib/mysql [root@localhost?usr]#?rm?/etc/my.cnf
如果裝了mysql-devel(其他一樣add command)，卸載為：
[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（此處為介紹）：}:
[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) ，否則password不更新（默認安裝，如果自定義安裝路徑和鏈接路徑ln -s ……請刪除。）
??rm -rf /var/lib/mysql
卸載3：
[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的所有目錄以及文件和其他配置和設置等。如果有，則刪除。也必須考慮其他軟件不去影響。
rm -rf /usr/lib/mysql
rm -rf /usr/share/mysql
卸載4：
[root@localhost?usr]#?rm?–rf?/usr/my.cnf [root@localhost?usr]#?rm?-rf?/root/.mysql_sercret
卸載5（自啟服務）：
[root@localhost?usr]#?chkconfig?--list?|?grep?-i?mysql [root@localhost?usr]#?chkconfig?--del?mysqld
此處刪除看自己設置:mysql/mysqld
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