RPM
From Teknologisk videncenter
								Redhat Package Manager
rpm is a powerful Package Manager, which can be used to build, install,query, verify, update, and erase individual software packages. A pack-
      age  consists  of an archive of files and meta-data used to install and
      erase the archive files. The meta-data includes  helper  scripts,  file
      attributes,  and  descriptive  information about the package.  Packages
      come in two varieties: binary packages, used to encapsulate software to
      be  installed,  and  source  packages,  containing  the source code and
      recipe necessary to produce binary packages.