mdmv - safely move messages between maildirs
mdmv MSG [MSG..] DEST
mdmv moves one or more messages, from one or more maildirs, to a single
destination maildir. It does this in a way that should not confuse maildir
mdmv tries to be sure not to overwrite any existing files,
but it does not try as hard to "deliver" the mail to the
destination maildir as a real MDA would, giving up rather earlier. Thus,
mdmv is intended to be used by scripts running on the same host upon
which the maildirs are actually stored.
mdmv was written by Sean Whitton <firstname.lastname@example.org>.