grep is screwed on Debian, Ubuntu and others ...

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Article #4141

#4141

From: Kaz Kylheku
Date: Fri, 04 May 2012 01:25

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http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=655293

I ran into this doing a simple grep job that needed to match upper
case characters, and so I started Googling.  This was only reported in January.

But the Red Hat people knew about what looks like the same bug two years ago.
Oops, they didn't share!

https://bugzilla.redhat.com/show_bug.cgi?id=583011

(So much for the spirit of collaboration in open source. My distro, my
patches, screw you!)

Watch this:

$ echo a | grep '[A-B]'
a
$ echo b | grep '[A-B]'
$ echo b | grep '[:upper:]'
$ echo B | grep '[:upper:]'
$ echo E | grep '[:upper:]'
$ echo e | grep '[:upper:]'
e

Ooops! Someone doesn't have a regression test suite, or at least not one
that is worth a damn.

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From: Kaz Kylheku <kaz@kylheku.com>
Newsgroups: comp.unix.shell,gnu.misc.discuss
Subject: grep is screwed on Debian, Ubuntu and others ...
Date: Fri, 4 May 2012 01:25:05 +0000 (UTC)
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