From owner-freebsd-arch  Sun Nov  7 10: 7:13 1999
Delivered-To: freebsd-arch@freebsd.org
Received: from ns1.yes.no (ns1.yes.no [195.204.136.10])
	by hub.freebsd.org (Postfix) with ESMTP id 8AEA914EC7
	for <freebsd-arch@freebsd.org>; Sun,  7 Nov 1999 10:07:06 -0800 (PST)
	(envelope-from eivind@bitbox.follo.net)
Received: from bitbox.follo.net (bitbox.follo.net [195.204.143.218])
	by ns1.yes.no (8.9.3/8.9.3) with ESMTP id TAA27551
	for <freebsd-arch@freebsd.org>; Sun, 7 Nov 1999 19:07:05 +0100 (CET)
Received: (from eivind@localhost)
	by bitbox.follo.net (8.8.8/8.8.6) id TAA17663
	for freebsd-arch@freebsd.org; Sun, 7 Nov 1999 19:07:05 +0100 (MET)
Received: from green.myip.org (localhost [127.0.0.1])
	by hub.freebsd.org (Postfix) with ESMTP
	id 6D18514FDC; Sun,  7 Nov 1999 10:05:49 -0800 (PST)
	(envelope-from green@FreeBSD.org)
Received: from localhost ([127.0.0.1] ident=green)
	by green.myip.org with esmtp (Exim 3.02 #1)
	id 11kEm5-0000RH-00; Sat, 06 Nov 1999 17:57:34 -0500
Date: Sat, 6 Nov 1999 17:57:33 -0500 (EST)
From: Brian Fundakowski Feldman <green@freebsd.org>
X-Sender: green@green.myip.org
To: obrien@freebsd.org
Cc: arch@freebsd.org
Subject: Re: new MD5 option
In-Reply-To: <19991106133558.A5539@dragon.nuxi.com>
Message-ID: <Pine.BSF.4.10.9911061743530.1527-100000@green.myip.org>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-arch@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

On Sat, 6 Nov 1999, David O'Brien wrote:

> I am adding an option to md5 to reverse the order of output.
> 
> From:
>     MD5 (/COPYRIGHT) = 7df8bc77dcee71382ea73eb0ec6a9243
> 
> to:
>     MD5 7df8bc77dcee71382ea73eb0ec6a9243  /COPYRIGHT
> 
> The reson for this addition is to aid visual diffs.  They are much easier
> if the MD5 hashes are nicely lined up.

I don't understand the issue.  If you're going to compare

MD5 (/dev/null) = d41d8cd98f00b204e9800998ecf8427e
	and
MD5 (/dev/null) = 93b885adfe0da089cdf634904fd59f71

They are already lined up.  If instead you want to compare something
like

MD5 (foo) = d3b07384d113edec49eaa6238ad5ff00
MD5 (quux) = d3b07a382ec010c01889250fce66fb13
	to
MD5 (foo) = 1bfe5d8702009e431bad3862b79f5d95
MD5 (quux) = 8687c409c3cc95464d49a7c4dff71e73

They're less lined up, but they look a lot better to a human than

	MD5 1bfe5d8702009e431bad3862b79f5d95	foo
	MD5 8687c409c3cc95464d49a7c4dff71e73	quux

If for some reason we _really_ need this, what's wrong with a shell
transformation instead:

transform_md5 () {
        local line
        while read line; do
                printf "MD5\t%s\t%s\n" $(echo "$line" | cut -d' ' -f4) \
        done
}

{"/home/green"}$ md5 /dev/null | transform_md5
MD5     d41d8cd98f00b204e9800998ecf8427e        /dev/null

What good is all the convenience we have available to reduce bloat
if we never use it for anything?

> 
> My question is what flag to use.  "-r" for reversed output?  "-v" for
> visual diff?
> 
> -- 
> -- David    (obrien@NUXI.com)
> 
> 

-- 
 Brian Fundakowski Feldman           \  FreeBSD: The Power to Serve!  /
 green@FreeBSD.org                    `------------------------------'





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