wordpress运行在centos7或其他Linux系统时，当需要重新安装或卸载wordpress时，可参考此方法。
1、删除wordpress的数据库文件
[root@wordpress ~]#
mysql -u root -p //登陆数据库
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 463
Server version: 5.6.37 MySQL Community Server (GPL)
Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
show databases; //查询数据库
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| wordpress |
+--------------------+
4 rows in set (0.01 sec)
mysql>
drop database wordpress; //删除wordpress数据库
Query OK, 12 rows affected (0.12 sec)
mysql> exit //退出
Bye
2、删除wordpress目录
[root@wordpress ~]#
[root@wordpress ~]# cd /var/www/html/ //进入wordpress系统所在目录
[root@wordpress html]# ls
cgi-bin
wp-admin wp-content
wp-includes
[root@wordpress html]#
[root@wordpress html]#
rm -rf * //删除wordpress目录下所有文件
[root@wordpress html]# reboot //重启服务器