Section: systemd-ask-password (1)
:systemd-ask-password [OPTIONS...] [MESSAGE]
The purpose of this tool is to query system-wide passwords -- that is passwords not attached to a specific user account. Examples include: unlocking encrypted hard disks when they are plugged in or at boot, entering an SSL certificate passphrase for web and VPN servers.
Existing agents are: a boot-time password agent asking the user for passwords using Plymouth; a boot-time password agent querying the user directly on the console; an agent requesting password input via a wall?(1) message; an agent suitable for running in a GNOME session; a command line agent which can be started temporarily to process queued password requests; a TTY agent that is temporarily spawned during systemctl?(1) invocations.
Additional password agents may be implemented according to the m[blue]systemd Password Agent Specificationm.
The following options are understood:
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