* Create a torrent file:
''$ transmission-create -t <tracker_url> [file|directory]''
  * Show torrent file
''$ transmission-show <torrent.file>''
  * Delete tracker URL from torrent file
''$ transmission-edit -d <tracker_url>  <torrent.file>''
  * Add tracker URL in torrent file
''$ transmission-edit -a <tracker_url>  <torrent.file>''
  * Open trackers I am using:  udp://tracker.publicbt.com:80, udp://tracker.openbittorrent.com:80, udp://tracker.istole.it:80