在需要自己登陆的用户目录下面，创建.my.cnf的文件，在文件中配置数据库的主机，用户名，密码，默认数据库，在命令行中就可以不需要输入用户名密码，直接登录到MySQL服务器了。
vim /home/[用户名]/.my.cnf
[client]
#MySQL主机
host = localhost
#用户
user = root
#密码
password = rootadmin
#登录的默认数据库
database = mysql
※如果是root用户，配置文件的为/root/.my.cnf
root@FileServer:~# mysql
Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 53 Server version: 5.5.34-0ubuntu0.12.10.1 (Ubuntu) Copyright (c) 2000, 2013, 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.