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ykinfo(1) Manual Page

NAME

ykinfo - Get basic information from a YubiKey

SYNOPSIS

ykinfo [-s] [-m] [-nkey] [-H] [-v] [-t] [-p] [-1] [-2] [-q] [-a] [-c] [-V] [-h]

DESCRIPTION

Get basic information from a YubiKey. Can get serial number, version and current touch level. Can get all parameters at once or one at a time. If -q is given only the relevant string from the YubiKey is written to screen.

OPTIONS

-s

get the serial number and output it.

-m

get the serial number and output it as modhex.

-nkey

read from the nth key found.

-H

get the serial number and output it as hex.

-v

get the version and output it.

-t

get the touch level and output it.

-p

get the programming sequence and output it.

-1

get the status of slot 1, 1 for programmed and 0 for empty.

-2

get the status of slot 2, 1 for programmed and 0 for empty.

-a

get all the information above.

-c

get YubiKey capability information.

-q

modifier, only show the relevant data from the YubiKey, no extra information.

-V

print tool version and exit

EXAMPLE

Output information from a YubiKey:

$ ykinfo -s -m -H -v -t -p
serial: 1077254
serial_hex: 107006
serial_modhex: bcicch
version: 2.2.3
touch_level: 1793
programming_sequence: 1
$

BUGS

Report ykinfo bugs in the issue tracker https://github.com/Yubico/yubikey-personalization/issues

SEE ALSO

YubiKeys can be obtained from Yubico http://www.yubico.com/