Linux: Bash Prompt, Add Color, DateTime

By Xah Lee. Date: . Last updated: .

Add Date/Time Stamp to Prompt

linux lxde lxterminal
bash prompt with color and date.

Here's how to add date/time stamp to your bash prompt. Type this in terminal:

PS1='\u@\H ◆ \D{%Y-%m-%d} ◆ \A ◆ \w\n';

Here's what the escape means:

To make it permanent, put the line in ~/.bashrc.

〔➤see Difference Between .bashrc, .profile, .bash_profile, …?

For basic bash prompt setting and parameters, see man bash, search for PS1. (type 【h】 for help.)

Color Bash Prompt


PS1='\n◆ \[\e[0;32m\]\u@\H\[\e[m\]◆\[\e[1;34m\] \D{%Y-%m-%d} \A \[\e[m\]◆ \w\n◆ '

here's the color syntax:

txtblk='\e[0;30m' # Black - Regular
txtred='\e[0;31m' # Red
txtgrn='\e[0;32m' # Green
txtylw='\e[0;33m' # Yellow
txtblu='\e[0;34m' # Blue
txtpur='\e[0;35m' # Purple
txtcyn='\e[0;36m' # Cyan
txtwht='\e[0;37m' # White
bldblk='\e[1;30m' # Black - Bold
bldred='\e[1;31m' # Red
bldgrn='\e[1;32m' # Green
bldylw='\e[1;33m' # Yellow
bldblu='\e[1;34m' # Blue
bldpur='\e[1;35m' # Purple
bldcyn='\e[1;36m' # Cyan
bldwht='\e[1;37m' # White
unkblk='\e[4;30m' # Black - Underline
undred='\e[4;31m' # Red
undgrn='\e[4;32m' # Green
undylw='\e[4;33m' # Yellow
undblu='\e[4;34m' # Blue
undpur='\e[4;35m' # Purple
undcyn='\e[4;36m' # Cyan
undwht='\e[4;37m' # White
bakblk='\e[40m'   # Black - Background
bakred='\e[41m'   # Red
bakgrn='\e[42m'   # Green
bakylw='\e[43m'   # Yellow
bakblu='\e[44m'   # Blue
bakpur='\e[45m'   # Purple
bakcyn='\e[46m'   # Cyan
bakwht='\e[47m'   # White
txtrst='\e[0m'    # Text Reset


ISO Date/Time Format for ls

make ls display datetime stamp in ISO date/time format, like 2015-11-22

alias l='ls -AlF --color --time-style=long-iso'

What the indicator mean:

Ignore Duplicates in History

How to make bash not save duplicates in history?

# don't save duplicate lines or lines starting with space

See man bash.

Mac OS X Add Color to ls Output

How to add color to ls output on Mac OS X?

Mac OS X uses BSD's version of ls. Use the -G option for color output.

alias l='ls -G -al'

Linux Terminal Topic

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  2. Linux: Bash Prompt, Add Color, DateTime
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