Subject: bug#55641: Using colours with grep

From: Paul Eggert <[email-masked]>
Date: Thu, 26 May 2022 19:16:58 -0700

On 5/25/22 13:48, goncholden via Bug reports for GNU grep wrote:
> Have been using grep to colour the filename printed by tail using grep, by setting GREP_COLOR.  However the setting does not work with GREP_COLORS.
> 
> Additionally, I could not set colour values with tput commands.
> 
> tail -v -n "$tm" $file | GREP_COLOR='01;32' $_GREP -e ^ -e '^==> .* <==$'

Sorry, I'm not following. Can you give a test case that I can reproduce 
here?