MySQL 通过mysql_config_editor更安全的登录数据库

在5.6版本中，MySQL可以通过mysql_config_editor登录数据库，变得更加安全。

[root@hank-yoon ~]# mysql_config_editor set --login-path=yoon --user=root --password

登录数据库：
[root@hank-yoon ~]# mysql --login-path=yoon
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.26-log Source distribution

Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sakila             |
| test               |
+--------------------+
5 rows in set (0.02 sec)

mysql>

查看配置文件，密码直接被加密隐藏
[root@hank-yoon ~]# mysql_config_editor print --all
[yoon]
user = root
password = *****
host = localhost

通过vi去编辑查看配置文件，显示一堆乱码
[root@hank-yoon ~]# vi .mylogin.cnf
^@^@^@^@^D^F^R^N^D^[^R^E^F^N^L  ^O^P^E^L^A^N^Z^\^P^@^@^@?<99>??^Y&:7U<9e>^W^[^E?J?^P^@^@^@Y?J[??·°?|<90>?h?