transmission-edit
Modify announce URLs from torrent files.
TLDR
Add or remove a URL from a torrent's announce list
$ transmission-edit --[add|delete] [http://example.com] [path/to/file.torrent]
Update a tracker's passcode in a torrent file
$ transmission-edit --replace [old-passcode] [new-passcode] [path/to/file.torrent]
