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Re: 'sort' seems to ignore case without any command line switches

From: Jim Meyering
Subject: Re: 'sort' seems to ignore case without any command line switches
Date: 23 Jun 2001 12:58:15 +0200
User-agent: Gnus/5.090003 (Oort Gnus v0.03) Emacs/21.0.104

Sergei Steshenko <address@hidden> wrote:

| Hello !
| I am using this version of 'sort' shipped with RedHat Linux 7.1:
| "
| [15] 17:06 address@hidden:/home/sergei> which sort
| /bin/sort
| [16] 17:06 address@hidden:/home/sergei> /bin/sort --version
| sort (GNU textutils) 2.0.11

Thanks for the report.
This is a common misunderstanding about how sort should work.
Here's the canned reply:

You are using the version of sort that comes with textutils-2.0
or newer and have reported a problem whereby it is sorting in
some non-ASCII order.

That is due not to a bug in sort, but to the fact that you have
set environment variables that direct sort to use improper locale-
specific tables (you or your vendor have probably set environment
variables like LANG, LC_ALL, or LANGUAGE to en_US).

Unset them, and then set LC_ALL to POSIX

  # If you use bash or some other Bourne-based shell,
  export LC_ALL=POSIX

  # If you use a C-shell,
  setenv LC_ALL POSIX

and sort will then work the way you expect.

BTW, in recent textutils test releases, sort --help output
includes this:

  *** WARNING ***
  This version of sort honors the locale settings in your environment.
  For example, if you set one of the LANG or LC_ALL environment variables
  to `en_US', then sort will work very differently than most people expect.
  If that's not what you want, then set LC_ALL to POSIX in your environment.

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