This is RPM, the RPM Package Manager.
The latest releases are always available at:
Additional RPM documentation (papers, slides, HOWTOs) can also be found at the same site: http://rpm.org.
http://rpm.org/community all rpm releated mailing lists.
RPM was originally written by:
Erik Troan Marc Ewing
See the CREDITS file for a list of folks who have helped us out tremendously. RPM is Copyright (c) 1998 by Red Hat Software, Inc., and may be distributed under the terms of the GPL and LGPL (see the file COPYING for details).