GNU bug report logs - #63780
Reversing the grep message output type matching binary files (without the -a option added) changed from stdout to stderr

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Message #48 received at 63780 <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: L A Walsh <coreutils <at> tlinx.org>
Cc: 2773414454 <at> qq.com, 63780 <at> debbugs.gnu.org
Subject: Re: bug#63780: Reversing the grep message output type matching binary
 files (without the -a option added) changed from stdout to stderr
Date: Thu, 1 Jun 2023 14:18:46 -0700

On 6/1/23 07:50, L A Walsh wrote:
> I thought binary files were skipped, by default

They're not. The '--binary-files=without-match' option enables that 
behavior. With that option, this issue doesn't come up.

> if they want to scan binary files as
> well as text, then positive results should be printed to stdout

Not if that would screw up the screen. This is a real problem with 
arbitrary binary data, with real security implications.

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