Shell Prompt
Introduce the way the shell prompt is displayed and record some tips.
Change prompt
change prompt temporarily
Change Prompt Permanently
- Open the ~/.bashrc with editor.
- Search and change the
PS1variable to'Combination of options'.
e.g.PS1='\[\033[01;34m\]\W\[\033[00m\]$' - Run source ~/.bashrc.
Prompt Options
The following options you can use for the BASH prompt are copied from https://phoenixnap.com/kb/change-bash-prompt-linux.
Some of these options may not work on all versions of Linux. \a – A bell character
\d – Date (day/month/date)
\D{format} – Use this to call the system to respond with the current time
\e – Escape character
\h – Hostname (short)
\H – Full hostname (domain name)
\j – Number of jobs being managed by the shell
\l – The basename of the shells terminal device
\n – New line
\r – Carriage return
\s – The name of the shell
\t – Time (hour:minute:second)
\@ – Time, 12-hour AM/PM
\A – Time, 24-hour, without seconds
\u – Current username
\v – BASH version
\V – Extra information about the BASH version
\w – Current working directory ($HOME is represented by ~)
\W – The basename of the working directory ($HOME is represented by ~)
\! – Lists this command’s number in the history
\# – This command’s command number
\$ – Specifies whether the user is root (#) or otherwise ($)
\\– Backslash
\[ – Start a sequence of non-displayed characters (useful if you want to add a command or instruction set to the prompt)
\] – Close or end a sequence of non-displayed characters