Usage:

• apt-get [options] command
• apt-get [options] install|remove pkg1 [pkg2 …]
• apt-get [options] source pkg1 [pkg2 …]

apt-get is a command line interface for retrieval of packages and information about them from authenticated sources and for installation,upgrade and removal of packages together with their dependencies.

Most used commands:

• update - Retrieve new lists of packages
• upgrade - Perform an install
• Install new packages (pkg is libc6 not libc6.deb)
• remove - Remove packages
• purge - Remove packages and config files
• autoremove - Remove automatically all unused packages
• dist-upgrade Distribution upgrade,see apt-get(8)
• dselect-upgrade - Follow dselect selections
• build-dep - Configure build-dependencies for source packages
• clean - Erase downloaded archive files
• autoclean - Erase old downloaded archive files
• check - Verify that there are no broken dependencies
• source - Dowdnload source archives
• download - Download the binary package into the current directory
• changelog - Download and display the changelog for the given package