Ncdu is a ncurses-based du viewer. It provides a fast and easy-to-use interface through famous du utility. It allows one to browse through the directories and show percentages of disk usage with ncurses library.

These libraries provide the Video Acceleration API (VA-API) for Unix. They provide accelerated video playback (incl. H.264) and video post-processing for the supported graphics cards.

tcplay is a free (BSD-licensed), pretty much fully featured (including multiple keyfiles, cipher cascades, etc) and stable TrueCrypt implementation.

Bacula is a set of programs to manage backup, recovery and verification of computer data across a network of computers of different kinds.

`awk', a program that you can use to select particular records in a file and perform operations upon them.

NetworkManager is a system network service that manages your network devices and connections, attempting to keep active network connectivity when available. It manages ethernet, Wi-Fi, mobile broadband (WWAN), and PPPoE devices, and provides VPN integration with a variety of different VPN services.