From owner-freebsd-questions  Sat Sep  7  8:22:15 2002
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id ABF0137B400
	for <questions@FreeBSD.ORG>; Sat,  7 Sep 2002 08:22:11 -0700 (PDT)
Received: from ei.bzerk.org (ei.xs4all.nl [213.84.67.5])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 7511A43E3B
	for <questions@FreeBSD.ORG>; Sat,  7 Sep 2002 08:22:10 -0700 (PDT)
	(envelope-from fbsd-q@bzerk.org)
Received: from ei.bzerk.org (BOFH@localhost [127.0.0.1])
	by ei.bzerk.org (8.12.5/8.12.5) with ESMTP id g87FLWeN033410;
	Sat, 7 Sep 2002 17:21:32 +0200 (CEST)
	(envelope-from stable@ei.bzerk.org)
Received: (from stable@localhost)
	by ei.bzerk.org (8.12.5/8.12.5/Submit) id g87FLVHW033409;
	Sat, 7 Sep 2002 17:21:31 +0200 (CEST)
Date: Sat, 7 Sep 2002 17:21:31 +0200
From: Ruben de Groot <fbsd-q@bzerk.org>
To: Giorgos Keramidas <keramida@ceid.upatras.gr>
Cc: "Henning, Brian" <brian.henning@navitaire.com>,
	questions@FreeBSD.ORG
Subject: Re: scripting problems
Message-ID: <20020907152131.GA33285@ei.bzerk.org>
References: <E1846117A30764468D2192D5A48541CC03894DF2@exchange.Navitaire.com> <20020907021348.GB24498@hades.hell.gr>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20020907021348.GB24498@hades.hell.gr>
User-Agent: Mutt/1.4i
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, Sep 07, 2002 at 05:13:48AM +0300, Giorgos Keramidas typed:
> In message: <E1846117A30764468D2192D5A48541CC03894DF2@exchange.Navitaire.com>
>             "Henning, Brian" <brian.henning@navitaire.com> wrote:
> >
> > i have this shell script that i am having problems with. when i run
> > it (cat output.txt | xargs sh mycheck_sum.sh) i get an error that
> > cannot open file.  but all the files are there. i am not sure what
> > the problem is with this script.  can someone take a quick look and
> > tell me if they see anything? 
> 
> > #! /bin/sh -x
> > # cat output.txt | xargs sh mycheck_sum.sh
> > 
> > INPUT=$1
> > SRC=`echo ${INPUT} | awk -F: '{ print $1 }'`
> > DST=`echo ${INPUT} | awk -F: '{ print $2 }'`
> 
> xargs will not pass just one argument at a time to your script:
> 
> 	$ cat > lala
> 	one
> 	two
> 	three
> 	$ xargs echo < lala
> 	one two three
> 	$

You can use the -n switch:
$ cat > lala
one
two
three
$ xargs -n1 < lala 
one
two
three


> 
> You will need to handle all the command line arguments that xargs
> passes to your script with something like:
> 
> 	#!/bin/sh
> 
> 	for arg in "$@" ;do
> 		# handle $arg
> 	done
> 
> -- 
> FreeBSD: The Power to Serve -- http://www.FreeBSD.org
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-questions" in the body of the message

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