[pm-h] maildir - remove duplicate messages

[G. Wade Johnson]

On Sun, 28 Mar 2010 21:31:52 +0100
"Russell L. Harris" <rlharris at oplink.net> wrote:

> G. Wade Johnson wrote:
> > I would probably take a multi-step approach. I would look for a

[snip]

> Thanks, Wade.  The term "digest" was unfamiliar to me, but I
> recognize the concept from the git documentation, as I am in the
> process of switching backup from svn to git.  And I was unaware of
> (or had forgotten about) search.cspan.org.

The same concept is called a "hash" in crytpographic circles. But, that
just confuses things when discussing Perl.

SHA1 is the same algorithm that git uses. MD5 is somewhat less
computationally expensive, but on a modern system it shouldn't matter.

The important point is that if two messages have the same digest, they
are the same message.

Good luck,
G. Wade
-- 
Sufficiently encapsulated magic is technology.    -- Michael Schwern