--登录mysql
1.查看原始默认密码
[root@localhost2 ~]# cat /root/.mysql_secret
# The random password set for the root user at Mon Aug 27 09:15:27 2018 (local time): yce4dJue8GjRQgFX
[root@localhost2 ~]#
2.登录
[root@localhost2 ~]# mysql -u root -p
mysql>
3.修改密码:
set password = password('123456');