GNU logs - #24382, boring messages

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Subject: bug#24382: grep should support -l and -n together
Resent-From: Mathieu Jobin <somekool@HIDDEN>
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From: Mathieu Jobin <somekool@HIDDEN>
Date: Tue, 6 Sep 2016 10:36:22 -0400
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I like using

> grep -rn pattern dir

a lot because it returns all the result with the line numbers
I think its one of the most common use case of grep.

recently I started using

> grep -rl pattern dir

only returning the list of files, without the content appended.
I find that really useful

but when using -rl , -n is ignored, which is sad, because I could pipe in
my editor and it would open the files at the proper line

for example

> grep -rln "[^a-z]if .\+ = .\+" app  | xargs kate

unfortunately, the line numbers is not present on the grep output here


should you chose not to support this, then it should probably error out

cheers,


-- 
Mathieu Jobin

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<div dir=3D"ltr"><div><div><div><div><div><div><div><div><div><div><div>I l=
ike using <br><br></div>&gt; grep -rn pattern dir<br><br></div>a lot becaus=
e it returns all the result with the line numbers<br></div>I think its one =
of the most common use case of grep.<br><br></div>recently I started using =
<br><br></div>&gt; grep -rl pattern dir<br><br></div>only returning the lis=
t of files, without the content appended.<br></div>I find that really usefu=
l<br><br></div>but when using -rl , -n is ignored, which is sad, because I =
could pipe in my editor and it would open the files at the proper line<br><=
br></div>for example<br><br>&gt; grep -rln &quot;[^a-z]if .\+ =3D .\+&quot;=
 app=C2=A0 | xargs kate<br><br></div>unfortunately, the line numbers is not=
 present on the grep output here<br><br><br></div><div>should you chose not=
 to support this, then it should probably error out<br><br></div>cheers,<br=
><br clear=3D"all"><div><div><div><div><div><div><div><div><div><div><div><=
div><div><div><br>-- <br><div class=3D"gmail_signature">Mathieu Jobin<br><b=
r></div>
</div></div></div></div></div></div></div></div></div></div></div></div></d=
iv></div></div>

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To: Mathieu Jobin <somekool@HIDDEN>
Subject: bug#24382: Acknowledgement (grep should support -l and -n together)
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Date: Tue, 06 Sep 2016 15:36:02 +0000

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Subject: bug#24382: grep should support -l and -n together
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On 09/06/2016 07:36 AM, Mathieu Jobin wrote:
> should you chose not to support this, then it should probably error out

Hmm, well, as I understand it POSIX requires that -n be ignored if -l is 
also specified; see:

http://pubs.opengroup.org/onlinepubs/9699919799/utilities/grep.html

I suppose we could add an option saying "please output file names and 
line numbers but not line contents". This option would act like -o, 
except it would omit all the line contents instead of just the 
non-matching part. Seems like a bit of a specialized use, though.

Can't you get something close to what you want, by asking the editor to 
search for the matching lines? For vi, you can do the following, and I 
assume your editor has a similar option:

vi +/PATTERN $(grep -l PATTERN FILES)

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From: Paul Eggert <eggert@HIDDEN>
Subject: 24382 is wishlist
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severity 24382 wishlist

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