想必大家在命令行操作mysql的時候會十分發愁現在的操作的是那個數據庫吧，至少我就糾結過，可能您會說我打一條命令不就知道了，是的這樣做確實可以的。
可是今兒給大家介紹個好用的命令--prompt
復制代碼 代碼如下:
[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;
這樣做的好處就是讓我們大家在操作數據庫時更加方便快捷。
您也可以在在my.cnf配置文件裡進行配置：
復制代碼 代碼如下:
[mysql]
prompt=mysql(\\u@\\h:\\d)>
default-character-set=utf8
復制代碼 代碼如下:
[root@fsailing1 ~]# vim /etc/my.cnf
[root@fsailing1 ~]# service mysqld restart
停止 MySQL： [確定]
啟動 MySQL： [確定]
[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)>
這裡也給出需要的一些個選項供大家參考。
Option
Description
\c
A counter that increments for each statement you issue
\D
The full current date
\d
The default database
\h
The server host
\l
The current delimiter (new in 5.1.12)
\m
Minutes of the current time
\n
A newline character
\O
The current month in three-letter format (Jan, Feb, …)
\o
The current month in numeric format
\P
am/pm
\p
The current TCP/IP port or socket file
\R
The current time, in 24-hour military time (0–23)
\r
The current time, standard 12-hour time (1–12)
\S
Semicolon
\s
Seconds of the current time
\t
A tab character
\U
Your full user_name@host_name
\u
Your user name
\v
The server version
\w
The current day of the week in three-letter format (Mon, Tue, …)
\Y
The current year, four digits
\y
The current year, two digits
\_
A space
\
A space (a space follows the backslash)
\'
Single quote
\"
Double quote
\\
A literal “\” backslash character
\x
x, for any “x” not listed above
