How to get the difference between two lists?

[Jim Hurley]

>
>Message: 6
>Date: Sun, 03 Apr 2005 22:04:54 -0500
>From: Ken Ray <kray at sonsothunder.com>
>Subject: How to get the difference between two lists?
>To: Use Revolution List <use-revolution at lists.runrev.com>
>Message-ID: <BE761906.181CF%kray at sonsothunder.com>
>Content-Type: text/plain;	charset="US-ASCII"
>
>I've got two lists - one with is the "comprehensive" list that is
>return-delimited, like:
>(snip)


Ken,

I wrote a short stack (non-pancake) a short time ago to deal with the 
multitude of e-mail list among the various volunteer groups in my 
community, extract duplicates, find common lines, etc.

It will generate the both the intersection and the union of any two 
lists. Don't know if this is any help but you can see with

       go url "http://home.infostations.net/jhurley/CompareLists.rev"

Jim