Tips for changing Linux Command Prompt segments

Tips for changing the Linux Command Prompt-Linux general technology-Linux programming and kernel information. For more information, see the following. Modify the environment variable PS1 (command line prompt), you can use vi to edit the/etc/profile file, and add:
Export PS1 = '[\ u @ \ h \ W] \ $'
Where \ u shows the current user account, \ h shows the current host name, \ W shows the current path, \ $ shows the '$' symbol
\ W can replace \ w to convert absolute paths to relative paths.

The following describes the meaning of the default special symbols in the environment:
\ D: represents the date, in the format of weekday month date, for example: "Mon Aug 1"
\ H: complete host name. For example, if my machine name is fc4.linux, this name is fc4.linux.
\ H: only the first name of the host. In the preceding example, the name is fc4, and the name of. linux is omitted.
\ T: The display time is in the 24-hour format, for example, HH: MM: SS.
\ T: The display time is in the 12-hour format.
\ A: The display time is in the 24-hour format: HH: MM.
\ U: Account name of the current user
\ V: BASH version information
\ W: complete working directory name. In the home directory ~ Replace
\ W: Use basename to get the working directory name. Therefore, only the last directory is listed.
#: Commands issued
\ $: The prompt character. If it is root, the prompt is: #, and the normal user is: $