X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-2.1 required=5.0	tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,RFC_ABUSE_POST,T_TO_NO_BRKTS_FREEMAIL
X-Spam-Check-By: sourceware.org
MIME-Version: 1.0
In-Reply-To: <4DD58660.3070401@redhat.com>
References: <19A81F46A6B94CCE9372358896F3E86B AT cit DOT wayne DOT edu>	<4DD58660 DOT 3070401 AT redhat DOT com>
Date: Fri, 20 May 2011 09:31:48 +0200
Message-ID: <BANLkTinp_Ay6Okx-8a7UziNs_ruV8v7XvA@mail.gmail.com>
Subject: Re: -a $HOME/.bashrc and -a ~/.bashrc produce different results
From: Csaba Raduly <rcsaba AT gmail DOT com>
To: cygwin AT cygwin DOT com
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
Precedence: bulk
List-Id: <cygwin.cygwin.com>
List-Unsubscribe: <mailto:cygwin-unsubscribe-archive-cygwin=delorie DOT com AT cygwin DOT com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/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

On Thu, May 19, 2011 at 11:06 PM, Eric Blake  wrote:

> "$HOME" expands $HOME, but "~/.bashrc" does _not_ expand ~. =A0For
> tilde-expansion to occur, it must be unquoted.

Not only that, it has to be the first character:

<quote>
3.5.2 Tilde Expansion
---------------------
If a word begins with an unquoted tilde character (`~'), ...
</endquote>

I've been bitten by this in a makefile when I wrote:

SOMETOOL :=3D ~/sometool
CPPFLAGS +=3D -I$(SOMETOOL)/include


and   -I~/sometool/include   was not expanded. I've made a rule to
only use ${HOME} in makefiles.

Csaba
--=20
GCS a+ e++ d- C++ ULS$ L+$ !E- W++ P+++$ w++$ tv+ b++ DI D++ 5++
The Tao of math: The numbers you can count are not the real numbers.
Life is complex, with real and imaginary parts.
"Ok, it boots. Which means it must be bug-free and perfect. " -- Linus Torv=
alds
"People disagree with me. I just ignore them." -- Linus Torvalds

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple