From owner-freebsd-questions  Sat Dec  1 21:59:19 2001
Delivered-To: freebsd-questions@freebsd.org
Received: from snipe.prod.itd.earthlink.net (snipe.mail.pas.earthlink.net [207.217.120.62])
	by hub.freebsd.org (Postfix) with ESMTP id BBAB037B417
	for <freebsd-questions@freebsd.org>; Sat,  1 Dec 2001 21:59:15 -0800 (PST)
Received: from dialup-209.245.132.68.dial1.sanjose1.level3.net ([209.245.132.68] helo=blossom.cjclark.org)
	by snipe.prod.itd.earthlink.net with esmtp (Exim 3.33 #1)
	id 16APef-0005j1-00; Sat, 01 Dec 2001 21:59:14 -0800
Received: (from cjc@localhost)
	by blossom.cjclark.org (8.11.6/8.11.3) id fB25wOH25378;
	Sat, 1 Dec 2001 21:58:24 -0800 (PST)
	(envelope-from cjc)
Date: Sat, 1 Dec 2001 21:58:16 -0800
From: "Crist J . Clark" <cristjc@earthlink.net>
To: "Gary W. Swearingen" <swear@blarg.net>
Cc: Darren Pilgrim <dmp@pantherdragon.org>,
	freebsd-questions@FreeBSD.ORG
Subject: Re: Changing $IFS in a bash shell
Message-ID: <20011201215816.P13613@blossom.cjclark.org>
Reply-To: cjclark@alum.mit.edu
References: <3C097584.B51ECEBC@pantherdragon.org> <20011201173255.N13613@blossom.cjclark.org> <ausnaup7da.nau@localhost.localdomain>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.2.5i
In-Reply-To: <ausnaup7da.nau@localhost.localdomain>; from swear@blarg.net on Sat, Dec 01, 2001 at 08:34:57PM -0800
X-URL: http://people.freebsd.org/~cjc/
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-questions.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-questions>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-questions>
X-Loop: FreeBSD.ORG

On Sat, Dec 01, 2001 at 08:34:57PM -0800, Gary W. Swearingen wrote:
> > > IFS=^M
> > > 
> > > What is the proper way to change $IFS?
> > 
> > I would expect the last one to work if '^M' is a _literal_ '^M' (that
> > is your keystrokes are, "IFS=<crtl-v><enter><enter>"). However, I
> > think,
> > 
> >   IFS="\
> >   "
> > 
> > Is probably the "cleanest" way to do it.
> 
> 1) I think that sets IFS to nothing since it escapes the newline.

Sorry,

  $ IFS="
  "

> 2) The Unix newline character is ^J (line feed), 
> not ^M (carriage return).

Good point. It would be,

  IFS=<ctrl-v><ctrl-j><enter>

Above, but that doesn't seem to work...

> 3) In ksh shell, this works:  IFS="\n"

But it doesn't work in bash.
-- 
Crist J. Clark                     |     cjclark@alum.mit.edu
                                   |     cjclark@jhu.edu
http://people.freebsd.org/~cjc/    |     cjc@freebsd.org

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message