Rtorrent is a ncurses BitTorrent Client written in C++ for *nix.

Main Features are :
  * Use an URL or file path to add torrents at runtime
  * Stop/delete/resume torrents
  * Optionally loads/saves/deletes torrents automatically in a session directory
  * Safe fast resume support
  * Peer's download speed calculated from incoming HAVE messages
  * Peer download progress

WWW: https://github.com/rakshasa/rtorrent