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<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
        "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">

<!--
  This file is part of systemd.

  Copyright 2010 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->

<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>

                <authorgroup>
                        <author>
                                <contrib>Developer</contrib>
                                <firstname>Lennart</firstname>
                                <surname>Poettering</surname>
                                <email>lennart@poettering.net</email>
                        </author>
                </authorgroup>
        </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 <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt" rep="repeat">VARIABLE=VALUE</arg></command>
                </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="http://www.freedesktop.org/wiki/Software/systemd/PasswordAgents">Password
                Agents Specification</ulink>.</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></term>

                                <listitem><para>Ask question on
                                <filename>/dev/console</filename>
                                instead of querying the user on the
                                calling TTY.  </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>