<?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</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://www.freedesktop.org/wiki/Software/systemd/PasswordAgents">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></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>