From owner-freebsd-questions@FreeBSD.ORG  Tue Sep  1 08:19:37 2009
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 563081065670
	for <freebsd-questions@freebsd.org>;
	Tue,  1 Sep 2009 08:19:37 +0000 (UTC)
	(envelope-from artis.caune@gmail.com)
Received: from mail-bw0-f206.google.com (mail-bw0-f206.google.com
	[209.85.218.206])
	by mx1.freebsd.org (Postfix) with ESMTP id D62D18FC14
	for <freebsd-questions@freebsd.org>;
	Tue,  1 Sep 2009 08:19:36 +0000 (UTC)
Received: by bwz2 with SMTP id 2so3145700bwz.43
	for <freebsd-questions@freebsd.org>;
	Tue, 01 Sep 2009 01:19:35 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=domainkey-signature:mime-version:received:in-reply-to:references
	:date:message-id:subject:from:to:cc:content-type
	:content-transfer-encoding;
	bh=weJLsd8o5LLtHbCyTXnsbGGk+djALWAbP2JvtOr4q3A=;
	b=XAtD2fv8okxQ58s65xeqhNSt/JTaAfnx+fQtosToTnpkt/GQp0t+vMUEdosdbA5Z4I
	PpjFPYuzczKLiyT745b9K96bnFvC/Cs3omLArK1MXqjasDG7Xk9Lk4ppkjnWE9FRs8sF
	/VwQSGGCtnSbqcgr6LAFKxWtueIJTc/chOaJw=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:cc:content-type:content-transfer-encoding;
	b=LcumwKHPDQQdNcaQjPt7InCi7R9IMb8qCYHgoHJt91fHmD41q09DMiFHnKpgelsgLv
	Od+SoeYTlhiECkG2eBrBmrE240628BXNcT2VrX2nCN626ICk++J5iR3T/fZ/k78rbhZ6
	7s3aWiUIQTgELd6SL+8yiHeVQviEaev5rIhaQ=
MIME-Version: 1.0
Received: by 10.103.78.38 with SMTP id f38mr2742505mul.72.1251793175403; Tue, 
	01 Sep 2009 01:19:35 -0700 (PDT)
In-Reply-To: <f99a79ec0908301607l7772a486j1986b87d31d33cef@mail.gmail.com>
References: <f99a79ec0908301607l7772a486j1986b87d31d33cef@mail.gmail.com>
Date: Tue, 1 Sep 2009 11:19:35 +0300
Message-ID: <9e20d71e0909010119g387c3869pb61a59c8b3c73c5b@mail.gmail.com>
From: Artis Caune <artis.caune@gmail.com>
To: Stefan Miklosovic <miklosovic.freebsd@gmail.com>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
Cc: freebsd-questions@freebsd.org
Subject: Re: shell command line argument + parsing function
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 01 Sep 2009 08:19:37 -0000

2009/8/31 Stefan Miklosovic <miklosovic.freebsd@gmail.com>:
> hi,
>
> assuming I execute shell script like this
>
> $ ./script -c "hello world"
>
> I want to save "hello world" string to variable COMMENT in shell script.
>
> code:
>
> #!/bin/sh
>
> parse_cmdline() {
> =C2=A0 =C2=A0while [ $# -gt 0 ]; do
> =C2=A0 =C2=A0 =C2=A0 =C2=A0case "$1" in
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0-c)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0shift
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0COMMENT=3D"$1"
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0;;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0esac
> =C2=A0 =C2=A0 =C2=A0 =C2=A0shift
> =C2=A0 =C2=A0done
> }
>
> parse_cmdline $*
>
> echo $COMMENT
>
> exit 0




How about getopts builtin, so you can use:
./script -c "hello world" or
./script -c"hello world" or


while getopts c: f; do
    case $f in
    c)
        COMMENT=3D$OPTARG
        ;;
    \?)
        echo 'usage: $0 [-c string]'
        exit 1
        ;;
    esac
done

echo "COMMENT: $COMMENT"




--=20
Artis Caune

    Everything should be made as simple as possible, but not simpler.