Hmm, and to absolutely avoid confusion:
$ sha1sum vivid-desktop-amd64.iso e54c7cb9cc54613f44af84c7dce796a729b74c94 vivid-desktop-amd64.iso
:D
Hmm, and to absolutely avoid confusion:
$ sha1sum vivid-desktop- amd64.iso f44af84c7dce796 a729b74c94 vivid-desktop- amd64.iso
e54c7cb9cc54613
:D