From owner-freebsd-questions@FreeBSD.ORG  Thu Nov 10 00:09:24 2011
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 B0088106564A
	for <freebsd-questions@freebsd.org>;
	Thu, 10 Nov 2011 00:09:24 +0000 (UTC)
	(envelope-from lenthe@comcast.net)
Received: from qmta13.westchester.pa.mail.comcast.net
	(qmta13.westchester.pa.mail.comcast.net [76.96.59.243])
	by mx1.freebsd.org (Postfix) with ESMTP id 751438FC0A
	for <freebsd-questions@freebsd.org>;
	Thu, 10 Nov 2011 00:09:24 +0000 (UTC)
Received: from omta22.westchester.pa.mail.comcast.net ([76.96.62.73])
	by qmta13.westchester.pa.mail.comcast.net with comcast
	id v8B31h0071ap0As5DBw9Lo; Wed, 09 Nov 2011 23:56:09 +0000
Received: from [192.168.1.101] ([68.42.13.245])
	by omta22.westchester.pa.mail.comcast.net with comcast
	id vBw81h01y5HDiR83iBw9yR; Wed, 09 Nov 2011 23:56:09 +0000
Message-ID: <4EBB1317.5060101@comcast.net>
Date: Wed, 09 Nov 2011 18:56:07 -0500
From: Jason Lenthe <lenthe@comcast.net>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
	rv:5.0) Gecko/20110815 Thunderbird/5.0
MIME-Version: 1.0
To: freebsd-questions@freebsd.org
References: <4EBA5646.5030102@unsane.co.uk>
In-Reply-To: <4EBA5646.5030102@unsane.co.uk>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: sed vs gnu sed
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: Thu, 10 Nov 2011 00:09:24 -0000

On 11/09/11 05:30, Vincent Hoffman wrote:
> 'Hi all,
>          I'm trying to move a script from a linux box to a freebsd box.
> All going well as its just a bash script and bash is bash, however there
> is one line I'm unable to use directly, as bsd sed (correctly according
> to SUS at least, I believe[1]) appends a newline when writing to
> standard out, gnu sed doesnt. example
> BSD
> [backup@banshee ~]$ echo -n "/boot:7:1:5; /:7:1:5; /var:7:1:5"  | sed -n
> 's/[[:space:]]*;[[:space:]]*/;/gp'
> /boot:7:1:5;/:7:1:5;/var:7:1:5
> [backup@banshee ~]$
>
> LINUX
>
> [backup@amber ~]$ echo -n "/boot:7:1:5; /:7:1:5; /var:7:1:5"  | sed
> 's/[[:space:]]*;[[:space:]]*/;/g'
> /boot:7:1:5;/:7:1:5;/var:7:1:5[backup@amber ~]$
>
> is there any easy way to make our sed do the same as gnu sed here?
>

You could also just lop off the newline with tr -d '\n':

echo -n "/boot:7:1:5; /:7:1:5; /var:7:1:5"  | sed -n 
's/[[:space:]]*;[[:space:]]*/;/gp' | tr -d '\n'