linux中忘记了mysql的root用户的密码怎么办？

1.vim /etc/my.cnf

skip-grant-tables #取消此行的注释

2.重启mysql

systemctl restart mysqld

3.mysql 登陆mysql

mysql> use mysql;

mysql> UPDATE user SET Password = password ( '123456' ) WHERE User = 'root' ;

mysql> flush privileges ;

mysql> quit

4.恢复配置文件my.cnf

vim /etc/my.cnf

[mysqld]

skip-grant-tables ##去掉此行，继续校验权限表，

5.重启mysql

systemctl restart mysqld