<?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">
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
This file is part of systemd.
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
-<refentry id="systemd-ask-password">
-
- <refentryinfo>
- <title>systemd-ask-password</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-ask-password</refentrytitle>
- <manvolnum>1</manvolnum>
- </refmeta>
-
- <refnamediv>
- <refname>systemd-ask-password</refname>
- <refpurpose>Query the user for a system password</refpurpose>
- </refnamediv>
-
- <refsynopsisdiv>
- <cmdsynopsis>
- <command>systemd-ask-password <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt">MESSAGE</arg></command>
- </cmdsynopsis>
- </refsynopsisdiv>
-
- <refsect1>
- <title>Description</title>
-
- <para><command>systemd-ask-password</command> may be
- used to query a system password or passphrase from the
- user, using a question message specified on the
- command line. When run from a TTY it will query a
- password on the TTY and print it to STDOUT. When run
- with no TTY or with <option>--no-tty</option> it will
- query the password system-wide and allow active users
- to respond via several agents. The latter is
- only available to privileged processes.</para>
-
- <para>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.</para>
-
- <para>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
- <citerefentry><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>
- 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
- <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
- invocations.</para>
-
- <para>Additional password agents may be implemented
- according to the <ulink
- url="http://www.freedesktop.org/wiki/Software/systemd/PasswordAgents">systemd
- Password Agent Specification</ulink>.</para>
-
- <para>If a password is queried on a TTY, the user may
- press TAB to hide the asterisks normally shown for
- each character typed. Pressing Backspace as first key
- achieves the same effect.</para>
-
- </refsect1>
-
- <refsect1>
- <title>Options</title>
-
- <para>The following options are understood:</para>
-
- <variablelist>
- <varlistentry>
- <term><option>-h</option></term>
- <term><option>--help</option></term>
-
- <listitem><para>Prints a short help
- text and exits.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--icon=</option></term>
-
- <listitem><para>Specify an icon name
- alongside the password query, which may
- be used in all agents supporting
- graphical display. The icon name
- should follow the <ulink
- url="http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html">XDG
- Icon Naming
- Specification</ulink>.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--timeout=</option></term>
-
- <listitem><para>Specify the query
- timeout in seconds. Defaults to
- 90s. A timeout of 0 waits indefinitely.
- </para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--no-tty</option></term>
-
- <listitem><para>Never ask for password
- on current TTY even if one is
- available. Always use agent
- system.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--accept-cached</option></term>
-
- <listitem><para>If passed, accept
- cached passwords, i.e. passwords
- previously typed in.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--multiple</option></term>
-
- <listitem><para>When used in
- conjunction with
- <option>--accept-cached</option>
- accept multiple passwords. This will
- output one password per
- line.</para></listitem>
- </varlistentry>
- </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>plymouth</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>
- </para>
- </refsect1>
+<refentry id="systemd-ask-password"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>systemd-ask-password</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-ask-password</refentrytitle>
+ <manvolnum>1</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>systemd-ask-password</refname>
+ <refpurpose>Query the user for a system password</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <cmdsynopsis>
+ <command>systemd-ask-password <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt">MESSAGE</arg></command>
+ </cmdsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><command>systemd-ask-password</command> may be used to query
+ a system password or passphrase from the user, using a question
+ message specified on the command line. When run from a TTY it will
+ query a password on the TTY and print it to standard output. When
+ run with no TTY or with <option>--no-tty</option> it will query
+ the password system-wide and allow active users to respond via
+ several agents. The latter is only available to privileged
+ processes.</para>
+
+ <para>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.</para>
+
+ <para>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
+ <citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ 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
+ <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ invocations.</para>
+
+ <para>Additional password agents may be implemented according to
+ the <ulink
+ url="http://www.freedesktop.org/wiki/Software/systemd/PasswordAgents">systemd
+ Password Agent Specification</ulink>.</para>
+
+ <para>If a password is queried on a TTY, the user may press TAB to
+ hide the asterisks normally shown for each character typed.
+ Pressing Backspace as first key achieves the same effect.</para>
+
+ </refsect1>
+
+ <refsect1>
+ <title>Options</title>
+
+ <para>The following options are understood:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><option>--icon=</option></term>
+
+ <listitem><para>Specify an icon name alongside the password
+ query, which may be used in all agents supporting graphical
+ display. The icon name should follow the <ulink
+ url="http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html">XDG
+ Icon Naming Specification</ulink>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>--timeout=</option></term>
+
+ <listitem><para>Specify the query timeout in seconds. Defaults
+ to 90s. A timeout of 0 waits indefinitely. </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>--echo</option></term>
+
+ <listitem><para>Echo the user input instead of masking it.
+ This is useful when using
+ <filename>systemd-ask-password</filename> to query for
+ usernames. </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>--no-tty</option></term>
+
+ <listitem><para>Never ask for password on current TTY even if
+ one is available. Always use agent system.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>--accept-cached</option></term>
+
+ <listitem><para>If passed, accept cached passwords, i.e.
+ passwords previously typed in.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>--multiple</option></term>
+
+ <listitem><para>When used in conjunction with
+ <option>--accept-cached</option> accept multiple passwords.
+ This will output one password per line.</para></listitem>
+ </varlistentry>
+
+ <xi:include href="standard-options.xml" xpointer="help" />
+ </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 project='die-net'><refentrytitle>plymouth</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ </para>
+ </refsect1>
</refentry>
~ianmdlvl / elogind.git / blobdiff