ps1 bash customization code example
Example 1: bash edit prompt display appearance
# syntax:
# export PS1='<Format required>'
# example:
export PS1='\[\033[1;33m\]\u@\[\e[0;36m\]\h:\[\e[1;32m\]$(pwd)\[\e[1;32m\]> \[\033[1;37m\]'
#===========================================================================================
# + ----------- + ----------------------------------------------------------- +
# | USABLE CODE | WHAT THE CODE REPRESENTS |
# + ----------- + ----------------------------------------------------------- +
# | \u | username |
# | \h | hostname |
# | \w | Full path of the current working directory (uses ~) |
# | $(pwd) | Full path of the current working directory (doesn't use ~) |
# | \[ | Begin sequence of non-printing characters |
# | \] | End sequence of non-printing characters |
# + ----------- + ----------------------------------------------------------- +
# + -------- + ------------ +
# | CODE | COLOR |
# + -------- + ------------ +
# | \e[0;30m | Black |
# | \e[1;37m | White |
# | \e[0;31m | Dark Red |
# | \e[1;31m | Light Red |
# | \e[0;32m | Dark Green |
# | \e[1;32m | Light Green |
# | \e[0;33m | Dark Yellow |
# | \e[1;33m | Light Yellow |
# | \e[0;34m | Dark Blue |
# | \e[1;34m | Light Blue |
# | \e[0;35m | Dark Pink |
# | \e[1;35m | Light Pink |
# | \e[0;36m | Dark Cyan |
# | \e[1;36m | Light Cyan |
# | \e[0;37m | Dark Gray |
# | \e[1;30m | Light Gray |
# + -------- + ------------ +
Example 2: options to customize $PS1 - 4
Special Characters to Customize PS1-4
\a an ASCII bell character (07)
\d the date in "Weekday Month Date" format (e.g., "Tue May
26")
\D {format}
the format is passed to strftime(3) and the result is
inserted into the prompt string; an empty format results
in a locale-specific time representation. The braces are
required
\e an ASCII escape character (033)
\h the hostname up to the first `.'
\H the hostname
\j the number of jobs currently managed by the shell
\l the basename of the shell's terminal device name
\n newline
\r carriage return
\s the name of the shell, the basename of $0 (the portion
following the final slash)
\t the current time in 24-hour HH:MM:SS format
\T the current time in 12-hour HH:MM:SS format
\@ the current time in 12-hour am/pm format
\A the current time in 24-hour HH:MM format
\u the username of the current user
\v the version of bash (e.g., 2.00)
\V the release of bash, version + patch level (e.g., 2.00.0)
\w the current working directory, with $HOME abbreviated
with a tilde (uses the value of the PROMPT_DIRTRIM vari-
able)
\W the basename of the current working directory, with $HOME
abbreviated with a tilde
\! the history number of this command
\# the command number of this command
\$ if the effective UID is 0, a #, otherwise a $
\nnn the character corresponding to the octal number nnn
\\ a backslash
\[ begin a sequence of non-printing characters, which could
be used to embed a terminal control sequence into the
prompt
\] end a sequence of non-printing characters
@Zenonymous