Binary package “apt” in ubuntu lucid

Advanced front-end for dpkg

 This is Debian's next generation front-end for the dpkg package manager.
 It provides the apt-get utility and APT dselect method that provides a
 simpler, safer way to install and upgrade packages.
 .
 APT features complete installation ordering, multiple source capability
 and several other unique features, see the Users Guide in apt-doc.