Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sources.redhat.com/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Message-ID:	<406C6B13.3070401@scytek.de>
Date:	Thu, 01 Apr 2004 14:18:43 -0500
From:	Volker Quetschke <quetschke AT scytek DOT de>
User-Agent:	Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4
MIME-Version:	1.0
To:	cygwin AT cygwin DOT com
Subject:	Is !C: a valid environment variable?
X-Enigmail-Version:	0.82.6.0
X-Enigmail-Supports:	pgp-inline, pgp-mime
X-Scanned-By:	MIMEDefang 2.39
X-IsSubscribed:	yes

--------------enig0E27D25AD7137772BD187C61
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Hi!

If you start bash from a command prompt, e.g. by starting the
cygwin.bat you get funny environment variables:

bash-2.05b$ set | grep \!
!C:='C:\cygwin\bin'

When you exit bash and start it again from the same shell you can
even get:

bash-2.05b$ set | grep \!
!C:='C:\cygwin\bin'
!EXITCODE=00000000

But try to echo any of these, or define one with !.

bash-2.05b$ export !HELLO=hello
bash: !HELLO=hello: event not found

I think this special treatment is a bug, what is the prefered solution?

The special treatment is done in environ.cc:

   /* Current directory information is recorded as variables of the
      form "=X:=X:\foo\bar; these must be changed into something legal
      (we could just ignore them but maybe an application will
      eventually want to use them).  */

I'm asking because I have a programm that chokes on !<something>
environment variables, and he workaround I'm using is always starting
the shell via: C:\cygwin\bin\rxvt.exe -e /usr/bin/bash --login -i
from the desktop or logoing into that machine via ssh.

Volker

-- 
PGP/GPG key  (ID: 0x9F8A785D)  available  from  wwwkeys.de.pgp.net
key-fingerprint 550D F17E B082 A3E9 F913  9E53 3D35 C9BA 9F8A 785D

--------------enig0E27D25AD7137772BD187C61
Content-Type: application/pgp-signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (MingW32)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org

iD8DBQFAbGsTPTXJup+KeF0RAuJ/AJ9lZ8Uhdt67BFOHYJ1eOisbzi+NlQCgkroU
RL9b0SHSRzDz8PC7Utrh6Eg=
=NDvg
-----END PGP SIGNATURE-----

--------------enig0E27D25AD7137772BD187C61--

- Raw text -