prompt命令可以在mysql提示符中显示当前用户、数据库、时间等信息
mysql -uroot -p --prompt="\u@\h:\d \r:\m:\s>"
设置成功后：
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 5
Server version: 5.1.60-log Source distribution
Copyright (c) 2000, 2012, 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) 11:04:23>
也可以在在my.cnf配置文件里进行配置：
[mysql]
prompt=mysql(\u@\h:\d)>
default-character-set=utf8
选项说明:
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 www.jb51.net
Your full user_name@host_name account 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