yum 安装mysql 临时密码查看

[root@123 mysql]# grep 'password' /var/log/mysqld.log |head -n 1
2017-06-17T02:01:01.026946Z 1 [Note] A temporary password is generated for root@localhost: XqWlxlV3p.a8
[root@junqi mysql]# mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 31169
Server version: 5.7.18