For example, for an Adobe Acrobat torrent I downloaded the other day, the instructions had me do this: rhash -r Extra/tnt.sfv -sha256 -skip-ok -c rhash is for verifying the hash sums of files (basically they're trying to have you verify the integrity of the package you just downloaded). I just used Homebrew to install rhash brew install rhash don't trust pirates), it's a pointless reassurance
TL DR: You don't have to do the rhash step - all it does is verify the checksum, and given the context (i.e.