DOKK / manpages / debian 12 / grc / grc.1.en
GRC(1) General Commands Manual GRC(1)

grc - frontend for generic colouriser grcat(1)

grc [options] command [args]

grc will execute command command with optional parameters [args] piping its stdout or stderr into grcat, with appropriate configuration file.

Configuration file for grc is determined by /etc/grc.conf file.

Format of /etc/grc.conf: each entry consists of 2 lines, between entries there can be any number of empty lines or lines beginning with # (comments)

First line is regular expression, second line the name of configuration file for grcat.

Configuration file after the first regular expression matching command [args] will be passed to grcat as its configuration file

Show summary of options.
Display version.
Redirect error output. Unless -s is selected as well, this cancels redirection of standard output via grcat
Redirect standard output. Used to redirect standard output together with --stderr option.
x is one of on off auto

--colour=on will colourise (default)

--colour=off will just execute command without colourising.

--colour=auto will test if standard output is a tty, and colourise only when it is.

grcat(1)

Written by Radovan Garabík <garabik @ kassiopeia.juls.savba.sk>