MySQL数据库在Linux下删除的详细介绍

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]#

2、查找MySQL的安装目录并彻底删除

[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

[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、删除一些配置文件配置文件一般有/etc/my.cnf 或/etc/init.d/mysql.server，视具体安装配置情况而定。

4、删除MySQL用户以及用户组

[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

参考资料：Linux下彻底卸载mysql详解

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