p4d2p is a Perl script which performs in-place editing on the output of
a previous 'p4 describe' command, to generate output suitable for patch(1).

p4genpatch is a Perl script which wraps 'p4 describe' to generate such
patches directly from the depot, when provided with a Perforce changelist
number.

Both utilities were written for development on Perl itself by Andreas Konig
and Gurusamy Sarathy, and were modified for use with multiple Perforce
depots by Simon Cozens.

WWW:	http://simon-cozens.org/programmer/secret-software.html