想必大家在命令行操作mysql的时候会十分发愁现在的操作的是那个数据库吧，至少我就纠结过，可能您会说我打一条命令不就知道了，是的这样做确实可以的。

可是今儿给大家介绍个好用的命令--prompt

复制代码 代码如下:

[root@fsailing1 ~]# mysql -uroot -p --prompt="u@h:d r:m:s>"

Enter password:

Welcome to the MySQL monitor. Commands end with ; or g.

Your MySQL connection id is 378

Server version: 5.0.95 Source distribution

Copyright (c) 2000, 2011, 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.

root@localhost:(none) 08:23:32>use test;

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Database changed

root@localhost:test 08:23:44>exit;

这样做的好处就是让我们大家在操作数据库时更加方便快捷。

您也可以在在my.cnf配置文件里进行配置：

复制代码 代码如下:

[mysql]

prompt=mysql(u@h:d)>

default-character-set=utf8

复制代码 代码如下:

[root@fsailing1 ~]# vim /etc/my.cnf

[root@fsailing1 ~]# service mysqld restart

停止 MySQL： [确定]

启动 MySQL： [确定]

[root@fsailing1 ~]# mysql -uroot -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or g.

Your MySQL connection id is 2

Server version: 5.0.95 Source distribution

Copyright (c) 2000, 2011, 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(root@localhost:(none))>use test;

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Database changed

mysql(root@localhost:test)>

这里也给出需要的一些个选项供大家参考。