aria2: aria2 (a utility for downloading files)
aria2: 
aria2: Aria2 support the HTTP(S), FTP, BitTorrent  (DHT, PEX, MSE/PE), and
aria2: Metalink protocols. It can download a file from multiple sources/
aria2: protocols and tries to utilize your maximum download bandwidth. It
aria2: even supports downloading a file from HTTP(S)/FTP and BitTorrent at
aria2: the same time, while the data downloaded from HTTP(S)/FTP is uploaded
aria2: to the BitTorrent swarm. Using Metalink's chunk checksums, aria2
aria2: automatically validates chunks of data while downloading a file like
aria2: BitTorrent.
aria2: