GNU bug report logs - #36820
grep "[[:cntrl:]]" /proc/1/cmdline works on 2.20 but not 3.3

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Package: grep;

Reported by: Jeff Chua <jeff.chua.linux <at> gmail.com>

Date: Sat, 27 Jul 2019 00:15:02 UTC

Severity: normal

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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Message #16 received at 36820 <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Jeff Chua <jeff.chua.linux <at> gmail.com>
Cc: 36820 <at> debbugs.gnu.org
Subject: Re: bug#36820: grep "[[:cntrl:]]" /proc/1/cmdline works on 2.20 but
 not 3.3
Date: Sun, 28 Jul 2019 17:59:51 -0500

On 7/28/19 3:04 AM, Jeff Chua wrote:
> Then if it's binary file, grep should default to "-a" 

No, as that would mean the default output of grep would not be text, and 
this could mess up terminals etc. This is partly why -a has never been 
the default. If you want -a behavior you can use -a.
This bug report was last modified 5 years and 274 days ago.

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