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YKCLIENT(1)                      User Commands                     YKCLIENT(1)

NAME
       ykclient - YubiCloud One-Time-Password Validation Client

SYNOPSIS
       ykclient [OPTION]... CLIENTID YUBIKEYOTP

DESCRIPTION
       Validate the YUBIKEYOTP one-time-password against the YubiCloud using
       CLIENTID as the client identifier.

       Mandatory arguments to long options are mandatory for short options
       too.

       --help Display this help screen

       --version
              Display version information

       --debug
              Print debugging information

       --url URL
              Validation service URL, for example,
              "http://api.yubico.com/wsapi/verify"

       --ca CADIR
              Path to directory containing Certificate Authoritity, e.g.,
              "/usr/local/etc/CERTS"

       --apikey Key
              API key for HMAC validation of request/response

       Exit status is 0 on success, 1 if there is a hard failure, 2 if the OTP
       was replayed, 3 for other soft OTP-related failures.

REPORTING BUGS
       Report bugs at <https://github.com/Yubico/yubico-c-client>.

ykclient 2.12                    February 2016                     YKCLIENT(1)