From owner-freebsd-questions@FreeBSD.ORG  Fri Aug 13 14:01:39 2010
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 13A321065695
	for <freebsd-questions@freebsd.org>;
	Fri, 13 Aug 2010 14:01:39 +0000 (UTC)
	(envelope-from j.mckeown@ru.ac.za)
Received: from d.mail.ru.ac.za (d.mail.ru.ac.za [IPv6:2001:4200:1010::25:4])
	by mx1.freebsd.org (Postfix) with ESMTP id 096058FC19
	for <freebsd-questions@freebsd.org>;
	Fri, 13 Aug 2010 14:01:38 +0000 (UTC)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=ru-msa; d=ru.ac.za;
	h=Received:From:Organization:To:Subject:Date:User-Agent:References:In-Reply-To:X-Face:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id:X-Virus-Scanned:X-Authenticated-User;
	b=AloNDtnpZdgHiqDdEH+jAS4TdvH4NEpSksf9cvoA1SFIaKh4O88j/Znnhjg6ST+7UB+Dnfo8OC+BvC4F+ORby8Urmju8cwdwizFcrBA/q8KRAS70n5F6licEVWbXu+a9;
Received: from vorkosigan.ru.ac.za
	([2001:4200:1010:1058:219:d1ff:fe9f:a932]:59256)
	by d.mail.ru.ac.za with esmtpsa (TLSv1:AES256-SHA:256)
	(Exim 4.69 (FreeBSD)) (envelope-from <j.mckeown@ru.ac.za>)
	id 1OjupC-000LFh-M0
	for freebsd-questions@freebsd.org; Fri, 13 Aug 2010 16:01:35 +0200
From: Jonathan McKeown <j.mckeown@ru.ac.za>
Organization: Rhodes University
To: freebsd-questions@freebsd.org
Date: Fri, 13 Aug 2010 16:01:34 +0200
User-Agent: KMail/1.9.10
References: <867hjv92r2.fsf@gmail.com>
	<3.0.1.32.20100813084738.00ee5c48@sage-american.com>
In-Reply-To: <3.0.1.32.20100813084738.00ee5c48@sage-american.com>
X-Face: $@VrUx^RHy/}yu]jKf/<4T%/d|F+$j-Ol2"2J$q+%OK1]&/G_S9(=?utf-8?q?HkaQ*=60!=3FYOK=3FY!=27M=60C=0A=09aP=5C9nVPF8Q=7DCilHH8l=3B=7E!4?=
	=?utf-8?q?2HK6=273lg4J=7Daz?=@1Dqqh:J]M^"YPn*2IWrZON$1+G?oX3@
	=?utf-8?q?k=230=0A=0954XDRg=3DYn=5FF-etwot4U=24b?=<FO&kjQCGnjz>dTS{i<i?:=p!]'t#K~4)cr7o%ygQiso
MIME-Version: 1.0
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <201008131601.34182.j.mckeown@ru.ac.za>
X-Virus-Scanned: d.mail.ru.ac.za (2001:4200:1010::25:4)
X-Authenticated-User: s0900137 from vorkosigan.ru.ac.za
	(2001:4200:1010:1058:219:d1ff:fe9f:a932) using auth_plaintext
Subject: Re: Grepping a list of words
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: Fri, 13 Aug 2010 14:01:39 -0000

On Friday 13 August 2010 15:47:38 Jack L. Stone wrote:

> The only thing it didn't do for me was the next step. My final objective
> was to really determine the words in the "word.file" that were not in the
> "main.file." I figured finding matches would be easy and then could then
> run a sort|uniq comparison to determine the "new words" not yet in the
> main.file.
>
> Since I will have a need to run this check frequently, any suggestions for
> a better approach are welcome.

sort -u and comm(1)?

comm will compare two sorted files and produce up to three lists: of words 
only in file one, of words only in file 2 and of words common to both files. 
You can suppress any or all of the output lists.

Jonathan