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Subject:	Re: Change PS1 when run as administrator
From:	Warren Young <wyml AT etr-usa DOT com>
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Date:	Tue, 15 Mar 2016 16:30:53 -0600
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On Mar 15, 2016, at 3:34 PM, Thomas Wolff <towo AT towo DOT net> wrote:
> 
> Is there also a universal replacement for
>    elif id | grep -e "gid=.*(Power Users)" > /dev/null
> ?

Give this a try:

PS1_COLOR=32
PS1_PCHAR='$'
for group in $(id -G); do
   test $group -eq 544 && { PS1_PCHAR='#'; PS1_COLOR=31; break; }
   test $group -eq 547 && { PS1_PCHAR='>'; PS1_COLOR=36; break; }
   test $group -eq 0   && { PS1_PCHAR='!'; PS1_COLOR=41; break; }
done
PS1='\[\e]0;\w\a\]\n\[\e['$PS1_COLOR'm\]\u@\h '
PS1=$PS1'\[\e[33m\]\w\[\e[0m\]\n'$PS1_PCHAR' '

I chose the color and prompt character mnemonically from PowerShell.

The color is actually cyan rather than the true blue of PowerShell because blue-on-black is difficult for me to read.  (Chromatic aberration due to glasses.)

This is untested since the Power Users group seems to have disappeared in Windows 10.
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