GNU bug report logs - #6007
locale sort ordering confusion

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eric Blake <eblake <at> redhat.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#6007: closed (sort command in Fedora10)
Date: Thu, 22 Apr 2010 22:29:02 +0000

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Your message dated Thu, 22 Apr 2010 16:28:08 -0600
with message-id <4BD0CD78.2050304 <at> redhat.com>
and subject line Re: bug#6007: sort command in Fedora10
has caused the GNU bug report #6007,
regarding sort command in Fedora10
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
6007: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6007
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Contact help-debbugs <at> gnu.org with problems

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From: "Vito Di Blas" <vito.diblas <at> libero.it>
To: <bug-coreutils <at> gnu.org>
Subject: sort command in Fedora10
Date: Thu, 22 Apr 2010 23:34:07 +0200

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Dear  Friends, in Linux Fedora10,  I sort the file aaa.txt :

Cari figliozzi
Cari figlipucci
Cari figli, oggi
Cari figli, ieri
Cari figli, domani
Cari figli, pregate
Cari figlioli

with the command:

<...>    sort  < aaa.txt  >  bbb.txt

and I obtain the  file bbb.txt

Cari figli, domani
Cari figli, ieri
Cari figli, oggi
Cari figlioli
Cari figliozzi
Cari figli, pregate
Cari figlipucci


which doesn't look sorted according to my expectation.
Then, in WindowsXP, I sort again the file aaa.txt with the command:

<...>    sort  aaa.txt  > ccc.txt

and I get the file ccc.txt :

Cari figli, domani
Cari figli, ieri
Cari figli, oggi
Cari figli, pregate
Cari figlioli
Cari figliozzi
Cari figlipucci

which looks sorted as expected.
Should  I  use in Fedora some sort option or I met a bug?
Thanks for your attention and best regards

Vito Di Blas   Ivrea  Italy
vito.diblas <at> libero.it

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From: Eric Blake <eblake <at> redhat.com>
To: Vito Di Blas <vito.diblas <at> libero.it>
Cc: 6007-done <at> debbugs.gnu.org
Subject: Re: bug#6007: sort command in Fedora10
Date: Thu, 22 Apr 2010 16:28:08 -0600

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On 04/22/2010 03:34 PM, Vito Di Blas wrote:
> and I obtain the  file bbb.txt
> 
> Cari figli, domani
> Cari figli, ieri
> Cari figli, oggi
> Cari figlioli
> Cari figliozzi
> Cari figli, pregate
> Cari figlipucci
> 
> 
> which doesn't look sorted according to my expectation.

Not a bug, if you are in a locale where the collating order discards
punctuation and whitespace as insignificant.

> Then, in WindowsXP, I sort again the file aaa.txt with the command:
> 
> <...>    sort  aaa.txt  > ccc.txt
> 
> and I get the file ccc.txt :
> 
> Cari figli, domani
> Cari figli, ieri
> Cari figli, oggi
> Cari figli, pregate
> Cari figlioli
> Cari figliozzi
> Cari figlipucci

This is due to a difference in the default locales of your two systems.
http://www.gnu.org/software/coreutils/faq/#Sort-does-not-sort-in-normal-order_0021

Try again with 'LC_ALL=C sort aaa.txt' to see the difference.
Personally, I have 'export LC_COLLATE=C' in my ~/.bashrc in order to
guarantee traditional sorting, while everything else continues to follow
my default locale.

-- 
Eric Blake   eblake <at> redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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