apt-get : APT package handling utility
[SYNOPSIS] apt-get OPTION COMMAND PKG
COMMAND
install Install package
update Download the list of new and updateable packages
upgrade Upgrade upgradable packages
remove Uninstall package
purge Delete packages and configuration files
autoremove Automatically remove unused packages
dist-upgrade Distribution upgrade
clean Delete downloaded package files
autoclean Clear old downloaded package files
download Download .deb file for package
changelog View package change history

OPTION
-y Say 'yes' to all questions
-s Only simulate actions, do not actually execute them
-d Only downloads packages, do not install or remove them
-q Do not display progress in command line mode
-h Show help
-V Show which version of a package is installed
-f Attempt to correct a system with broken dependencies in place
-u Show upgraded packages