GNU bug report logs - #19998
GREP_OPTIONS alternative?

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Christian Kujau <lists <at> nerdbynature.de>
Subject: bug#19998: closed (Re: bug#19998: GREP_OPTIONS alternative?)
Date: Wed, 11 Mar 2015 18:17:02 +0000

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Your bug report

#19998: GREP_OPTIONS alternative?

which was filed against the grep package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 19998 <at> debbugs.gnu.org.

-- 
19998: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19998
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Christian Kujau <lists <at> nerdbynature.de>
Cc: 19998-done <at> debbugs.gnu.org
Subject: Re: bug#19998: GREP_OPTIONS alternative?
Date: Wed, 11 Mar 2015 11:15:59 -0700

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On 03/05/2015 11:24 AM, Christian Kujau wrote:
> that (and the bits below) seem to confirm that there's no simple
> alternative to GREP_OPTIONS

I don't see why the script solution is not considered 'simple'. Anyway, 
it's worth documenting the script alternative, so I installed the 
attached into the manual and am marking the bug as done.

[0001-doc-give-a-script-wrapper-example.patch (text/x-patch, attachment)]

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From: Christian Kujau <lists <at> nerdbynature.de>
To: bug-grep <at> gnu.org
Subject: GREP_OPTIONS alternative?
Date: Tue, 3 Mar 2015 21:55:18 -0800 (PST)

Hi,

much to my dismay I noticed that GREP_OPTIONS has been made obsolete. I 
usually kept the following in my .profile:

  export GREP_OPTIONS='--color=tty --devices=skip'

which was honored by GNU/grep and BSD/grep and ignored by e.g 
SUNWcsu/grep. Without GREP_OPTIONS, I have to put something like this in 
my .profile:

if grep --version 2>/dev/null | egrep -q 'GNU|BSD' 2>/dev/null; then
        alias   grep='grep   --color=auto --devices=skip'
fi


But that leaves out all the other grep variants, so what I really have in 
my .profile now is something like this:

if grep --version 2>/dev/null | egrep -q 'GNU|BSD' 2>/dev/null; then
        alias   grep='grep   --color=auto --devices=skip'
        alias  egrep='egrep  --color=auto --devices=skip'
        alias  fgrep='fgrep  --color=auto --devices=skip'
        alias  zgrep='zgrep  --color=auto --devices=skip'
        alias bzgrep='bzgrep --color=auto --devices=skip'
        alias xzgrep='xzgrep --color=auto --devices=skip'
fi

(and even that leaves out bzegrep, xzfgrep, etc.)

I suspect that I'm doing it wrong - but what's the alternative to have 
some nice grep defaults and still be portable across platforms?

Thanks,
Christian.
-- 
BOFH excuse #355:

Boredom in the Kernel.

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