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Message-ID: <15FDCE057B48784C80836803AE3598D53B885A@racerx.ixiacom.com>
From: Dan Kegel <dkegel AT ixiacom DOT com>
To: Dan Kegel <dkegel AT ixiacom DOT com>,
   "''Michael A Chase ' '"
	 <mchase AT ix DOT netcom DOT com>,
   "'''cygwin AT cygwin DOT com' ' '" <cygwin AT cygwin DOT com>
Subject: RE: faq: why doesn't tilde expansion work in shell scripts in cyg
	win?
Date: Sat, 24 Aug 2002 21:02:10 -0700
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"

Aha.  I figured it out, and it looks like Cygwin's ash might not be posix
compliant.  Tilde expansion is required by Posix; see
http://www.opengroup.org/onlinepubs/007904975/utilities/xcu_chap02.html#tag_
02_06_01

Looking at the source for the ash used in Cygwin, it looks like
tilde expansion is disabled!  The Makefile.am in
http://programming.ccp14.ac.uk/ftp-mirror/programming/cygwin/pub/cygwin/rele
ase/ash/ash-20020731-1-src.tar.bz2
defines SMALL by default, which shuts off tilde expansion.
That would explain my result (though not why tilde works from the
ash commandline; curious).

Am I correct?  It's a little suprising to find Cygwin 
doesn't use a Posix-compliant shell...
- Dan

-----Original Message-----
From: Dan Kegel
To: 'Michael A Chase '; Dan Kegel; ''cygwin AT cygwin DOT com' '
Sent: 24.08.2002 20:20
Subject: RE: faq: why doesn't tilde expansion work in shell scripts in
cygwin?

Say, it says in 
http://www.opengroup.org/onlinepubs/007904975/utilities/xcu_chap02.html#
tag_02_06_01
and
http://www.opengroup.org/onlinepubs/007908799/xcu/chap2.html#tag_001_006
_001
that tilde expansion is required.  Yet ash claims it is posix compliant.
Hrm.  Somebody's wrong somewhere... maybe ash is only compliant to
an outdated posix version?
- Dan

-----Original Message-----
From: Michael A Chase
To: Dan Kegel; 'cygwin AT cygwin DOT com'
Sent: 24.08.2002 19:49
Subject: Re: faq: why doesn't tilde expansion work in shell scripts in
cygwin?

On Sat, 24 Aug 2002 16:01:36 -0700 Dan Kegel <dkegel AT ixiacom DOT com> wrote:

> In all my shell scripts, I'm having to replace ~ with $HOME to
> get them to work under Cygwin.  Seems a bit odd.  Am I doing
> something wrong?  This is with a fairly fresh installation
> of Cygwin on Win2K.

Which shell is being invoked for the scripts?  If it is /bin/sh, ash
doesn't do tilde expansion.
-- 
Mac :})
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