AutoUpdate is a Perl script which performs a task similar to Red Hat's up2date or autorpm. It can be used to automatically download and upgrade RPMs from different HTTP(S) or (S)FTP sites, while also handling dependencies. Moreover, it can also be used to keep a server with a customized (Red Hat) distribution plus all clients up to date.
The "dpkg" suite contains the programs which handle Debian (.deb) packages. It was developed on Debian GNU/Linux but can be used on all Linux distributions and most Unix systems. The "dpkg" command can be used to install, remove and manage .deb binary packages, and it maintains a package database which gets updated on changes. It is also a front-end to the low-level "dpkg-deb" tool, which is oriented towards manipulating archives. However, the primary interface to dpkg is the "dselect" program, which is used to get and display packages for the user to select for (de)installation.
dpkg-sn is a textual navigator for Debian/GNU Linux systems. It provides recursive exploration on main fields of each Debian package (.deb) installed on the system. It is also possible to search and view files owned by a package. The selection of a package-group or a file-group is made with regular expressions.
The Fink project wants to bring the full world of Unix Open Source software to Darwin and Mac OS X. It modifies Unix software so that it compiles and runs on Mac OS X and makes it available for download as a coherent distribution. Fink uses Debian tools like dpkg and apt-get to provide powerful binary package management. You can choose whether you want to download precompiled binary packages or build everything from source.
Graft provides a mechanism for managing multiple packages under a single directory hierarchy. It was inspired by both Depot (from Carnegie Mellon University) and Stow (by Bob Glickstein). Packages are installed in self-contained directory trees and symbolic links from a common area are made to the package files.