Ubuntu - apt

apt stands for Advanced Package Tool; to install, delete or remove apps, keep the system up to date with security patches and more.

apt does not provide all package options, but provide the most commonly used ones.
See apt-get which provide a lot more options, which may be more confusing to the end-user.

The `apt` command is meant to be pleasant for end users and does not need to be backward compatible like apt-get.

Add local directory to apt sources.list

Differences to apt-get

Display details about a package

Display a list of packages on hold

Display package dependencies

Display policy of a package

Edit the source information file

Enable/disable the install progress bar

Install a package

List all installed packages

List all repositories and PPAs

List packages that can be upgraded

Perform a full system upgrade

Purge a package

Reinstall a package

Remove a package

Search packages

Unhold a package

Update the package database

Upgrade installed packages