Nhopkg is a lightweight and powerful package manager system for Unix-like operating systems. Nhopkg can install, remove, update, search, and manage software packages in its own .nho format. Nhopkg aims to be a universal package manager. Because of this, Nhopkg isn't only a package manager, but is also a set of guidelines to pack up software for any machine. Therefore, to check package dependencies, Nhopkg searches for specific files instead of package names.
wget can be used to download a Web site, with all pages referenced by the originating one, but it saves all pages in a directory tree (or single directory). The intention of web-archive-creator is to join the power of wget and the usability of the .war format, which Konqueror is able to browse. The Web ARrchive format is simply a tarred and gzipped file containing the Web files. The web-archive-creator script performs the download with wget and writes an index.html linking to the starting pages/URLs wget fetched.
Spack is a standalone package manager with its own CPIO-based package format but aiming to keep total compatibility with Slackware Linux. Written in POSIX shell as much as it makes sense, it attempts to provide a fairly complete toolkit to build, install, remove, list, retrieve, and arrange your packages. It can be used as an alternative to Slackware's pkgtools, just to independently and properly manage your local software on any distribution, or as the main package manager of the distribution you build yourself.
With 'nixstaller' you can easily make installers for Unix-like systems. Some of the project goals: support for many different platforms, support for different (optional) frontends used by the installer (currently FLTK, ncurses, GTK 2, and Qt are planned), ease of use for the install creator and the end user, different ways of installing (extract files to a location, compile software on the user's system, and maybe even integration for the package manager running on the user's system). Nixstaller can be fully translated and is programmed in C++ and sh.
bpkg is a utility that tries to simplify the process of trying out new programs from source. For most packages, this can be as simple as "bpkg <url or tarball>". bpkg will download, extract, configure, compile, install, generate a package in your system's native format, and finally integrate that package into your system's packaging system so that you can remove it cleanly. It has auto-detection for Arch Linux, Slackware, Red Hat, Gentoo, and SuSE (though not all packaging back-ends are complete). bpkg is not intended as a replacement for normal packaging utilities.
deb-install is a command line tool that can install or show information about packages and files in several different formats. Whenever a program is installed using deb-install, it is converted into a .deb package beforehand, and thus can be removed with a simple "apt-get remove <name>". It currently supports apt-get, .deb, .rpm, .dsc, and .tar/.zip (source archives). Compression via gzip or bzip2 is handled automatically. If a needed tool is missing, deb-install asks whether it should install it.
UniPackage is an alternative to distribution-specific packaging systems like dpkg and RPM. UniPackage is a simple system that works on any Linux distribution. UniPackage packages are tar.bz2 archives which contain a self-contained "AppDir" which can be moved anywhere in the filesystem without disturbing the application's installation. In most cases, this packaging does not require changes to the application's code. The issue of dependencies is avoided by bundling all required libraries in the AppDir.
Simple Perl Package Manager tracks the files added or deleted from a system by using "find". It can detect modified files using installwatch, make backups of modified or deleted files, and remove, list, or make a tarball of a package. It records MD5 checksums of all installed files and includes a script to verify them and check other attributes of a package.