an easy and consistent way of installing software ported to FreeBSD
HLExtract is a command line utility written in C that can load all HLLib
supported packages and extract multiple items from them while maintaining
their directory structure. Currently, BSP, GCF, NCF, PAK, WAD, XZP, and
uncompressed ZIP package formats are supported.
WWW: http://nemesis.thewavelength.net/index.php?p=35