From owner-freebsd-ports@FreeBSD.ORG  Tue Jan 24 18:26:58 2006
Return-Path: <owner-freebsd-ports@FreeBSD.ORG>
X-Original-To: ports@freebsd.org
Delivered-To: freebsd-ports@FreeBSD.ORG
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id F2B8716A42B
	for <ports@freebsd.org>; Tue, 24 Jan 2006 18:26:57 +0000 (GMT)
	(envelope-from swhetzel@gmail.com)
Received: from xproxy.gmail.com (xproxy.gmail.com [66.249.82.205])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 7C89D43D53
	for <ports@freebsd.org>; Tue, 24 Jan 2006 18:26:56 +0000 (GMT)
	(envelope-from swhetzel@gmail.com)
Received: by xproxy.gmail.com with SMTP id s9so886060wxc
	for <ports@freebsd.org>; Tue, 24 Jan 2006 10:26:55 -0800 (PST)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com;
	h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references;
	b=YEC+ERJozAXkoQ9Y/ap2+UiL6uFXaCWa+odzSpo9T5tolvKZCSAOe8ersav+rDeWjaRvornWeiaPsTnYml7BmpLdPXhTV0C8SZMrvtLVvE81b3vuJjYGub9WwPhcbLNWiPzAGRR2SqhPiOl96vLk9kztC0nDZQocJnTbTWmfvmE=
Received: by 10.70.75.11 with SMTP id x11mr7662129wxa;
	Tue, 24 Jan 2006 10:26:55 -0800 (PST)
Received: by 10.70.53.2 with HTTP; Tue, 24 Jan 2006 10:26:55 -0800 (PST)
Message-ID: <790a9fff0601241026s3f4e7f09k92ab1de2cd974b5d@mail.gmail.com>
Date: Tue, 24 Jan 2006 12:26:55 -0600
From: Scot Hetzel <swhetzel@gmail.com>
To: "Andrew P." <infofarmer@gmail.com>
In-Reply-To: <cb5206420601240941r16ad7ed7x8ab50c40fee86e2b@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
References: <cb5206420601240941r16ad7ed7x8ab50c40fee86e2b@mail.gmail.com>
Cc: FreeBSD Ports <ports@freebsd.org>
Subject: Re: cp -n vs. test -f
X-BeenThere: freebsd-ports@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Porting software to FreeBSD <freebsd-ports.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ports>,
	<mailto:freebsd-ports-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-ports>
List-Post: <mailto:freebsd-ports@freebsd.org>
List-Help: <mailto:freebsd-ports-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ports>,
	<mailto:freebsd-ports-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 24 Jan 2006 18:26:58 -0000

On 1/24/06, Andrew P. <infofarmer@gmail.com> wrote:
> So why do we use "if [ ! -f file ] ; then cp file.new file; fi"
> instead of "cp -n file.new file" in pkg-plist's and many
> other places? I think the "cp -n" way is what we really
> mean to do.
>
We probably don't use it because of the following at the bottom of the
cp man page.

"The -v and -n options are non-standard and their use in scripts is
not recommended."

Scot
--
DISCLAIMER:
No electrons were mamed while sending this message. Only slightly bruised.