mysql prompt的用法詳解
--prompt=name 參數對於做運維的人來說很重要。我們登入mysql數據庫后，mysql的提示符只是一個很簡單內容 mysql> ,沒有其他任何信息。通過--prompt=name可以自定義提示信息，通過配置顯示登入的主機地址，登陸用戶名，當前時間，當前數據庫schema等待。個人強烈要求加上 登入主機名，登陸用戶名，當前庫 schema這三項加入提示內容。
[root@zw-test-db ~]# 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 33
Server version: 5.6.23-log MySQL Community Server (GPL)
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) 05:45:21>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 05:45:56>
2.也可以把參數加到my.cnf里面
vim /etc/my.cnf
[mysql]
prompt="\\u@\\h :\\d\\r:\\m:\\s>"
[root@zw-test-db ~]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.23-log MySQL Community Server (GPL)
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) 05:49:40>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 05:51:05>
參數如下:
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