GNU logs - #77934, boring messages

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Subject: bug#77934: bug: md5sum: Escaped backslashes in filename got in stdout
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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: William Johnson <oi_mate@HIDDEN>
Subject: bug#77934: Acknowledgement (bug: md5sum: Escaped backslashes in
 filename got in stdout)
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Date: Sun, 20 Apr 2025 06:34:02 +0000

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77934: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D77934
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Message sent to bug-coreutils@HIDDEN:

Subject: bug#77934: bug: md5sum: Escaped backslashes in filename got in stdout
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On Sat, Apr 19, 2025, at 17:44, William Johnson via GNU coreutils Bug Re=
ports wrote:
>
> Hello. I would like to report a bug for md5sum coreutil.
> If filename has =E2=80=98\t=E2=80=99 in filename, stdout for md5sum re=
sult will start=20
> with backslash symbol.
>=C2=A0
> [ ... ]
>


This is documented behavior since coreutils 8.25 for filenames containin=
g backslashes:

  https://www.gnu.org/software/coreutils/manual/html_node/cksum-output-m=
odes.html

- Glenn

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tags 77934 notabug
close 77934

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tags 77934 notabug
close 77934

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Subject: bug#77934: bug: md5sum: Escaped backslashes in filename got in stdout
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tag 77934 notabug
close 77934
stop

On 20/04/2025 00:44, William Johnson via GNU coreutils Bug Reports wrote:
> Hello. I would like to report a bug for md5sum coreutil.
> If filename has ‘\t’ in filename, stdout for md5sum result will start with backslash symbol.
>   
> *  My version of md5sum util:
> md5sum --version
> md5sum (GNU coreutils) 8.32
>   
> *  Set of commands to reproduce:
> $ touch hello
> $ touch hello\t\\t\\\t\\\\t
> $ md5sum ./*
> d41d8cd98f00b204e9800998ecf8427e  ./hello
> \d41d8cd98f00b204e9800998ecf8427e  ./hellot\\t\\t\\\\t
>   
> *  Expected no backshash symbol in stdout line 2. This is not  a big deal as files with backslashes in names are rare, but if someone process md5sums with regexp this case might ruin their work. Theoretically.
> Thank you.

That's expected and documented behavior.
Consider using --zero for programmatic use of these utilities,
in which case the escaping is not used (required).

cheers,
Pádraig

Last modified: Sun, 20 Apr 2025 16:15:01 UTC

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