Here's a thought: 

$hex="abcdef0123";
 
$hex=~s/([0-9a-fA-F]{2})/$1=/g;
 
@digits=split(/=/,$hex);
 
$octets=join(".",reverse @digits);
 
printf "%s\n%s\n",$hex,$octets;

[download]
when the code is run it yeilds: 
 perl octet.pl
ab=cd=ef=01=23=
23.01.ef.cd.ab

[download]

Peter L. Berghold -- Unix Professional
Peter at Berghold dot Net
   Dog trainer, dog agility exhibitor, brewer of fine Belgian style ales. Happiness is a warm, tired, contented dog curled up at your side and a good Belgian ale in your chalice.

In reply to Re: Hex to Octet by blue_cowdawg
in thread Hex to Octet by Anonymous Monk

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