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systemd-stable/man/systemd-tty-ask-password-agent.xml
2017-11-19 19:08:15 +01:00

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XML

<?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">
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Copyright 2010 Lennart Poettering
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<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>