mysql5.7安装后查看密码并重置

1、查看密码 

grep "password" /var/log/mysqld.log

2、进入数据库，输入密码

mysql -u root -p 

密码为：

(Qpe:Gjrr82y

3、设置简单密码为123456

 set global validate_password_policy=0;

 set global validate_password_length=1;

　alter user 'root'@'localhost' identified by '123456';

　flush privileges;