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
+ 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
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
+ <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>
<listitem><para>Specify the query
timeout in seconds. Defaults to
- 90s.</para></listitem>
+ 90s. A timeout of 0 waits indefinitely.
+ </para></listitem>
</varlistentry>
<varlistentry>
<varlistentry>
<term><option>--accept-cached</option></term>
- <listitem><para>If passed accept
+ <listitem><para>If passed, accept
cached passwords, i.e. passwords
previously typed in.</para></listitem>
</varlistentry>
<refsect1>
<title>Exit status</title>
- <para>On success 0 is returned, a non-zero failure
+ <para>On success, 0 is returned, a non-zero failure
code otherwise.</para>
</refsect1>