<?xml version='1.0'?> <!--*-nxml-*--> <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> <!-- SPDX-License-Identifier: LGPL-2.1-or-later --> <refentry id="systemd-tty-ask-password-agent" xmlns:xi="http://www.w3.org/2001/XInclude"> <refentryinfo> <title>systemd-tty-ask-password-agent</title> <productname>systemd</productname> </refentryinfo> <refmeta> <refentrytitle>systemd-tty-ask-password-agent</refentrytitle> <manvolnum>1</manvolnum> </refmeta> <refnamediv> <refname>systemd-tty-ask-password-agent</refname> <refpurpose>List or process pending systemd password requests</refpurpose> </refnamediv> <refsynopsisdiv> <cmdsynopsis> <command>systemd-tty-ask-password-agent</command> <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt" rep="repeat">VARIABLE=VALUE</arg> </cmdsynopsis> </refsynopsisdiv> <refsect1> <title>Description</title> <para><command>systemd-tty-ask-password-agent</command> 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.</para> <para><command>systemd-tty-ask-password-agent</command> implements the <ulink url="https://systemd.io/PASSWORD_AGENTS/">Password Agents Specification</ulink>, and is one of many possible response agents which answer to queries formulated with <citerefentry><refentrytitle>systemd-ask-password</refentrytitle><manvolnum>1</manvolnum></citerefentry>. </para> </refsect1> <refsect1> <title>Options</title> <para>The following options are understood:</para> <variablelist> <varlistentry> <term><option>--list</option></term> <listitem><para>Lists all currently pending system password requests.</para></listitem> </varlistentry> <varlistentry> <term><option>--query</option></term> <listitem><para>Process all currently pending system password requests by querying the user on the calling TTY.</para></listitem> </varlistentry> <varlistentry> <term><option>--watch</option></term> <listitem><para>Continuously process password requests.</para></listitem> </varlistentry> <varlistentry> <term><option>--wall</option></term> <listitem><para>Forward password requests to <citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry> instead of querying the user on the calling TTY.</para></listitem> </varlistentry> <varlistentry> <term><option>--plymouth</option></term> <listitem><para>Ask question with <citerefentry project='die-net'><refentrytitle>plymouth</refentrytitle><manvolnum>8</manvolnum></citerefentry> instead of querying the user on the calling TTY.</para></listitem> </varlistentry> <varlistentry> <term><option>--console</option><optional>=<replaceable>DEVICE</replaceable></optional></term> <listitem><para>Ask question on TTY <replaceable>DEVICE</replaceable> instead of querying the user on the calling TTY. If <replaceable>DEVICE</replaceable> is not specified, <filename>/dev/console</filename> will be used.</para></listitem> </varlistentry> <xi:include href="standard-options.xml" xpointer="help" /> <xi:include href="standard-options.xml" xpointer="version" /> </variablelist> </refsect1> <refsect1> <title>Exit status</title> <para>On success, 0 is returned, a non-zero failure code otherwise.</para> </refsect1> <refsect1> <title>See Also</title> <para> <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemd-ask-password-console.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, <citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>, <citerefentry project='die-net'><refentrytitle>plymouth</refentrytitle><manvolnum>8</manvolnum></citerefentry> </para> </refsect1> </refentry>