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systemd-tty-ask-password-agent

List or process pending systemd password requests

systemd-tty-ask-password-agent [OPTIONS...] [VARIABLE=VALUE...]

systemd-tty-ask-password-agent is a password agent that handles password requests of the system, for example for hard disk encryption passwords or SSL certificate passwords that need to be queried at boot-time or during runtime.

systemd-tty-ask-password-agent implements the Password Agents Specification[1].

The following options are understood:

--list

Lists all currently pending system password requests.

--query

Process all currently pending system password requests by querying the user on the calling TTY.

--watch

Continuously process password requests.

--wall

Forward password requests to wall(1) instead of querying the user on the calling TTY.

--plymouth

Ask question with plymouth(8) instead of querying the user on the calling TTY.

--console

Ask question on /dev/console instead of querying the user on the calling TTY.

-h, --help

Print a short help text and exit.

--version

Print a short version string and exit.

On success, 0 is returned, a non-zero failure code otherwise.

systemd(1), systemctl(1), systemd-ask-password-console.service(8), wall(1), plymouth(8)

1.
Password Agents Specification
http://www.freedesktop.org/wiki/Software/systemd/PasswordAgents