apt-get
apt-get [-sqdyfmubV] [-o= config_string ] [-c= config_file ] [-t= target_release] {update | upgrade | dselect-upgrade | dist-upgrade | install pkg [ { =pkg_version_number | /target_release } ] ... | remove pkg... | purge pkg... | source pkg [ { =pkg_version_number | /target_release } ] ... | build-dep pkg... | check | clean | autoclean | autoremove | {-v | --version} | {-h | --help}}
apt-get is a tool to handle packages on Debian/Ubuntu systems.
An essential utility for Debian and Ubuntu users who like to manage their packages from the command line. The way it should be :-)
Examples
Get the latest package list
apt-get update
Install a package
sudo apt-get install ssh