From owner-freebsd-questions@FreeBSD.ORG  Wed Mar 30 18:03:38 2005
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Date: Wed, 30 Mar 2005 13:03:37 -0500
From: Matt Kosht <matt.kosht@gmail.com>
To: Mario Hoerich <lists@mhoerich.de>
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cc: freebsd-questions@freebsd.org
Subject: Re: md5
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On Wed, 30 Mar 2005 17:55:11 +0200, Mario Hoerich <lists@mhoerich.de> wrote:
> # Matt Kosht:
> > Is there a simple way to compare the md5 checksum of a file, to a file
> > that contains possibly more than one md5 checksum entry in it?  Kind
> > of like mdsum -c does?
> 
> Perfect job for a shellscript. :)
> 
>     #!/bin/sh
> 
>     if [ -z "$2" ]; then
>         echo "Usage: `basename $0` <file> <file with sums>" 1>&2
>         exit
>     fi
> 
>     sum=`md5 "$1" | sed 's-^MD5 [^=]*= --'`
>     cnt=`grep -c "$sum" "$2"`
> 
>     if [ $cnt -eq 0 ]; then
>         echo "No match."
>     else
>         echo "Match."
>     fi
> 
>  HTH
> Mario
> 

Most excellent and appreciated. Works like a champ. Thanks Mario!