On linux when you want to know how to use an application you would
typically check a man (manual) page using the command man <app/command>
e.g.
$ man ls
The output is going to be text which, depending on your console/terminal emulator’s theming, will be plain white text. But the man pages are coded in such a way that you can also output this text coloured.
Arch Linux wiki show us how to colour the text by edition your local
profile1. I’m using bash but the wiki has instructions for fish
too. In the ~/.bashrc
file enter the following function which
will be run for man
.
# enable colour support for man pages
man() {
export LESS_TERMCAP_mb=$'\E[1;31m' # begin bold
export LESS_TERMCAP_md=$'\E[1;36m' # begin blink
export LESS_TERMCAP_me=$'\E[0m' # reset bold/blink
export LESS_TERMCAP_so=$'\E[01;44;33m' # begin reverse video
export LESS_TERMCAP_se=$'\E[0m' # reset reverse video
export LESS_TERMCAP_us=$'\E[1;32m' # begin underline
export LESS_TERMCAP_ue=$'\E[0m' # reset underline
export GROFF_NO_SGR=1 # for konsole and gnome-terminal
command man "$@"
}
The last line of that function runs the actual man command and the preceding lines set the colour etc.
Then just load the profile.
$ source ~/.bashrc
And you will get coloured output whenever you read a man page in the terminal.