GNU bug report logs - #24225
ls doesn't quote newlines with -Q properly

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: "E. Choroba" <choroba <at> matfyz.cz>
Subject: bug#24225: closed (Re: bug#24225: ls doesn't quote newlines with
 -Q properly)
Date: Mon, 15 Aug 2016 09:05:02 +0000

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Your bug report

#24225: ls doesn't quote newlines with -Q properly

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

The explanation is attached below, along with your original report.
If you require more details, please reply to 24225 <at> debbugs.gnu.org.

-- 
24225: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=24225
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Pádraig Brady <P <at> draigBrady.com>
To: "E. Choroba" <choroba <at> matfyz.cz>, 24225-done <at> debbugs.gnu.org
Subject: Re: bug#24225: ls doesn't quote newlines with -Q properly
Date: Mon, 15 Aug 2016 10:04:46 +0100

On 14/08/16 18:13, E. Choroba wrote:
> Filename containing a newline is not listed in a way reusable by shell 
> regardless of the --quoting-style:

There were many cases where the output from ls was unusable.
This was fixed since coreutils-8.25 where the new 'shell-escape'
quoting style was introduced, and in fact is used by default.

  $ ls a?b --quoting-style='shell-escape'
  'a'$'\n''b'

thanks,
Pádraig

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From: "E. Choroba" <choroba <at> matfyz.cz>
To: bug-coreutils <at> gnu.org
Subject: ls doesn't quote newlines with -Q properly
Date: Sun, 14 Aug 2016 19:13:33 +0200 (CEST)

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Filename containing a newline is not listed in a way reusable by shell 
regardless of the --quoting-style:

$ touch a$'\n'b
$ for s in literal shell shell-always c c-maybe escape locale clocale ; do
      ls -Q a?b --quoting-style=$s
  done
a?b
'a?b'
'a?b'
"a\nb"
"a\nb"
a\nb
‘a\nb’
‘a\nb’

I'd expect something like $'a\nb' (might be bash specific) or 'a
b' (i.e. containing the actual newline) or something.

Versions:

bash 4.2.53(1)-release
ls (GNU coreutils) 8.23
system: OpenSUSE 13.2 x86_64

Reference:
http://stackoverflow.com/q/38938218/1030675

Ch.

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