The following is the shortest tutorial that should get you up and running…
1- install rtorrent
apt-get install rtorrent
2- download the torrents
3- start rtorrent
Hit enter on the screen you are on, then hit tab, you should see a list of the torrent files you downloaded, type the first letter of your file then tab again, the program will either show you your file , or reduce the list to all the files that have that same prefix, add one more letter then hit tab again, keep going until you have your file.
Once done, use the arrow keys to select your torrent file, then hit ctrl+s to Start the torrent.
That’s all you need to know !