How to add a torrent to a running rtorrent download?

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http://unix.stackexchange.com – So there is a directory full of torrent files: debian.iso.torrent fedora.iso.torrent I can start downloading them with a: rtorrent *.torrent command, when the working directory is the same where the torrents are. But. Every time when I start rtorrent in this way it calculates all the hashes..it takes looong time do to that and it's a cpu intensive thing. Are there any methods to avoid this? (other console-based torrent client? or a feature to add a single torrent when already downloading a torrent without calculating all the torrent's hashes?) (HowTos)