习惯使用LAMP建站，所以需要自己建立用户和数据库，网站使用本地连接就可以了。注意mysql语句末尾有个分号;

登录数据库

mysql -u root -p

添加新用户

create user 'test'@'localhost' identified by '123456';

create user 'test'@'%' identified by '123456'; 

update user set password=password("12345678") where user="test";

flush privileges;

查看所有用户

SELECT DISTINCT CONCAT('User: ''',user,'''@''',host,''';') AS query FROM mysql.user;

查看用户权限

show grants for test;

查看数据库

show databases;

删除用户

drop user [email protected]'%';

删除数据库

drop database testdb;

为用户创建数据库

create database testdb DEFAULT CHARSET utf8 COLLATE utf8_general_ci;

为新用户分配权限

grant all privileges on `testdb`.* to 'test'@'localhost' identified by '123456';

grant all privileges on *.* to 'test'@'localhost' identified by '123456' with grant option;

grant all privileges on `testdb`.* to 'test'@'%' identified by '123456';

flush privileges;

use testdb;

mysqldump -uroot -p --all-databases >/tmp/all.sql

mysql -e "show databases;" -ugame -p| grep -Ev "Database|information_schema|mysql|phpmyadmin" | xargs mysqldump -ugame -p --databases > mysql_dump.sql

source ~/temp/testdb.sql 

退出 root 登录