apt-get is a set of command line tools that allow you to install, remove and update deb packages installed via the APT (Advanced Package Tool).

• apt-get provides a huge amount of package options.
• See apt which provides the most commonly used ones, and more user friendly to the end-user.

Clean the system

Install a package

Install a package without upgrading

Install a specific version of an application

Only upgrade a package, do not install it

Purge a package

Remove a package

Update the package database

Upgrade installed packages