GNU bug report logs - #18867
sort utility bug reporting

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Rameshreddy Mudhireddy <rameshreddy.mudhireddy <at> ericsson.com>
To: "bug-coreutils <at> gnu.org" <bug-coreutils <at> gnu.org>
Subject: sort utility bug reporting
Date: Mon, 27 Oct 2014 21:47:12 +0000

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[erammud <at> eussjlxxen210 ~/programs/python/rewrite_tree]:sort --version
sort (GNU coreutils) 6.12
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Mike Haertel and Paul Eggert.



cat 3.log
l.c
lD.h
l.h
sort 3.log
l.c
lD.h
l.h

Expected output is
l.c
l.h
lD.h


Regards
Ramesh

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Message #12 received at 18867-done <at> debbugs.gnu.org (full text, mbox):

From: Eric Blake <eblake <at> redhat.com>
To: Rameshreddy Mudhireddy <rameshreddy.mudhireddy <at> ericsson.com>,
 18867-done <at> debbugs.gnu.org
Subject: Re: bug#18867: sort utility bug reporting
Date: Tue, 28 Oct 2014 06:33:59 -0600

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tag 18867 notabug
thanks

On 10/27/2014 03:47 PM, Rameshreddy Mudhireddy wrote:
> [erammud <at> eussjlxxen210 ~/programs/python/rewrite_tree]:sort --version
> sort (GNU coreutils) 6.12

You may want to upgrade; the latest version is 8.23, and there HAVE been
sort bug fixes in the meantime.  However, for your particular issue,
what you have found is not a bug in sort but in your usage.

> sort 3.log
> l.c
> lD.h
> l.h

Newer builds of sort include a --debug flag that show you what is going on:

$ printf 'l.c\nlD.h\nl.h\n' | sort --debug
sort: using ‘en_US.UTF-8’ sorting rules
l.c
___
lD.h
____
l.h
___

$ printf 'l.c\nlD.h\nl.h\n' | LC_ALL=C sort --debug
sort: using simple byte comparison
l.c
___
l.h
___
lD.h
____


You have encountered a FAQ:
https://www.gnu.org/software/coreutils/faq/coreutils-faq.html#Sort-does-not-sort-in-normal-order_0021

Your current locale has chosen a collation sequence that is case
insensitive and ignores punctuation, so sort IS sorting correctly.  Set
LC_ALL in the environment of sort to a different locale if you want
bytewise sorting.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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