MySQL中prompt 中一些特殊的转义字符串
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 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

1、系统环境变量设置

MacBook:~ javen$ export MYSQL_PS1=\"[\\u@\\h:\\d][\\r:\\m:\\s\\P] MySQL-> \"
MacBook:~ javen$ mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \\g.
Your MySQL connection id is 13
Server version: 5.6.25-enterprise-commercial-advanced MySQL Enterprise Server - Advanced Edition (Commercial)
Copyright (c) 2000, 2015, 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)][01:57:30pm] MySQL-> 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][01:57:34pm] MySQL->

2、MySQL中prompt命令设置

MacBook:~ javen$ mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \\g.
Your MySQL connection id is 16
Server version: 5.6.25-enterprise-commercial-advanced MySQL Enterprise Server - Advanced Edition (Commercial)
Copyright (c) 2000, 2015, 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>
mysql> prompt [\\u@\\h:\\d][\\r:\\m:\\s\\P] MySQL->
PROMPT set to \'[\\u@\\h:\\d][\\r:\\m:\\s\\P] MySQL->\'
[root@localhost:(none)][02:00:28pm] MySQL->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][02:00:35pm] MySQL->

3、MySQL连接时命令行设置

MacBook:~ javen$ mysql -uroot -p --prompt=\"[\\u@\\h:\\d][\\r:\\m:\\s\\P] MySQL-> \"
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \\g.
Your MySQL connection id is 17
Server version: 5.6.25-enterprise-commercial-advanced MySQL Enterprise Server - Advanced Edition (Commercial)
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)][02:03:03pm] MySQL-> 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][02:03:07pm] MySQL->

个人比较喜欢在系统环境变量中设置，并写入到Bash变量中，不用每次登录重新设置。

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