BitTorrent

A torrent is Article description::a group of peer-to-peer (P2P) clients participating in a coordinated sharing of one or more files. The structure of this torrent group as well as the metadata involved with the torrent is defined by the tracker file.

Clients that want to participate in the torrent connect to the tracker to find out from who to download files. Recent versions of this method also support peer exchange so that clients can communicate to other clients who participates without the need for registering this in the tracker.

Command-line clients

 * RTorrent is a text-based ncurses BitTorrent client written in C++
 * , if built with bittorrent USE flag, has a BitTorrent client add-on

Graphical clients

 * is a KDE based BitTorrent client
 * is a Qt based BitTorrent client

Command-line and graphical clients

 * Deluge is a client/server based BitTorrent capable application with both CLI and GUI (GTK 3)
 * supports both CLI and GUI (GTK 3 and Qt 5)

External resources

 * BitTorrent (Wikipedia)
 * Torrent file (Wikipedia)