定制你的MySQL命令行
我在登录MySQL后的命令行是这个样子的:
warmbupt@pchuang:/windows/MyCode/SS$ mysql -u root -ppassw0rd
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 37
Server version: 5.1.37-1ubuntu5.1 (Ubuntu)
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
通过一系列改造,我们可以得到一个更加user-friendly的命令行提示符。
我们试着显示用户名、主机名和正在使用的数据库名称:
在shell命令行中设置环境变量:
export MYSQL_PS1="\u@\h [\d]> "
其中
\u – Username 用户名
\h – Hostname 主机名
\d – Current mysql database 当前数据库
当然,你可以将该命令写入bashrc以后在bash下使用都能得到这样的命令行提示符了。或者你可以在MySQL的配置文件/etc/my.cnf 或.my.cnf设置:
prompt=\\u@\\h [\\d]>\\_
另外,你在MySQL内也可以设置:
prompt \u@\h [\d]>
在你想回归原始的时候你可以在MySQL中键入prompt即可回归(回到在MySQL外部的设置,若你在bashrc中写入的话即回归到bashrc中的设置状态)。
附变量表:
Generic variables:
\S displays semicolon
\’ displays single quote
\” displays double quote
\v displays server version
\p displays port
\\ displays backslash
\n displays newline
\t displays tab
\ displays space (there is a space after \ )
\d displays default database
\h displays default host
\_ displays space (there is a underscore after \ )
\c displays a mysql statement counter. keeps increasing as you type commands.
\u displays username
\U displays username@hostname accountname
Date related variables:
\D displays full current date (as shown in the above example)
\w displays 3 letter day of the week (e.g. Mon)
\y displays the two digit year
\Y displays the four digit year
\o displays month in number
\O displays 3 letter month (e.g. Jan)
\R displays current time in 24 HR format
\r displays current time in 12 hour format
\m displays the minutes
\s displays the seconds
\P displays AM or PM
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