md5

Matt Kosht matt.kosht at gmail.com
Wed Mar 30 10:03:38 PST 2005


On Wed, 30 Mar 2005 17:55:11 +0200, Mario Hoerich <lists at 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!


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