paperkey --version (return code: 0)
paperkey 1.3 (linux-gnu)
Copyright (C) 2007, 2008, 2009, 2012 David Shaw <dshaw@jabberwocky.com>
This is free software. You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.
paperkey --help (return code: 0)
Usage: paperkey [OPTIONS]
--help (-h)
--version (-V)
--verbose (-v) be more verbose
--output (-o) write output to this file
--input-type auto, base16 or raw (binary)
--output-type base16 or raw (binary)
--output-width maximum width of base16 output
--secret-key extract secret data from this secret key
--pubring public keyring to find non-secret data
--secrets file containing secret data to join with the public key
--ignore-crc-error don't reject corrupted input
--file-format show the paperkey file format
--comment add a comment to the base16 output