sudo apt-get install aria2
aria2
The Next Generation Download Utility
aria2 is a lightweight multi-protocol & multi-source download utility operated in command-line. It supports HTTP/HTTPS, FTP, BitTorrent and Metalink. aria2 has built-in JSON-RPC and XML-RPC interface. You can manipulate aria2 via these interfaces.
$ aria2c http://example.org/mylinux.torrent
