2.3.2 APT
APT (the Advanced Packaging Tool) is an advanced interface to the Debian
packaging system consisting of several programs whose names typically begin
with "apt-". apt-get, apt-cache, and
apt-cdrom are the command-line tools for handling packages. These
also function as the user's "back end" programs to other tools, such
as dselect and aptitude.
For more information, install the apt package and read
apt-get(8), apt-cache(8), apt-cdrom(8),
apt.conf(5), sources.list(5),
apt_preferences(5) (Woody), and
/usr/share/doc/apt/guide.html/index.html.
An alternative source of information is the APT HOWTO. This
can be installed by apt-howto at
/usr/share/doc/Debian/apt-howto/.
apt-get upgrade and apt-get dist-upgrade pull only
the packages listed under "Depends:" and overlook all the packages
listed under "Recommends:" and "Suggests:". To avoid this,
use dselect.