SYNOPSIS

authvar [-?] [-a|--append] [-d|--certdir=<certificate directory path>]
        [-c|--clear] [-s|--set] [-N|--namespace={<namespace>|<guid>}]
        [-n|--name=<name>] [-t|--timestamp=<time>] [-v|--value=<value>]
        [-f|--valuefile=<file>] [-i|--import=<file>] [-e|--export=<file>]
        [-S|--sign=<nickname>] [-?|--help] [--usage]

DESCRIPTION

authvar is a command line utility for handling authenticated UEFI variables.

OPTIONS

-a, --append

append to variable

-d, --certdir=<certificate directory path>

specify nss certificate database directory (default: "/etc/pki/pesign")

-c, --clear

clear variable

-s, --set

set variable

-N, --namespace={<namespace>|<guid>}

specified variable is in <namespace> or <guid> (default: "global")

-n, --name=<name>

variable name

-t, --timestamp=<time>

timestamp for the variable

-v, --value=<value>

value to set or append

-f, --valuefile=<file>

read value from <file>

-i, --import=<file>

import variable from <file>

-e, --export=<file>

export variable to <file> instead of firmware

-S, --sign=<nickname>

sign variable with certificate <nickname>

Help options:

-?, --help

Show this help message

--usage

Display brief usage message