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<p>
Previous: <a href="A-Sample-Function-Description.html#A-Sample-Function-Description" accesskey="p" rel="prev">A Sample Function Description</a>, Up: <a href="Format-of-Descriptions.html#Format-of-Descriptions" accesskey="u" rel="up">Format of Descriptions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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<a name="A-Sample-Command-Description-1"></a>
<h4 class="subsubsection">1.3.5.2 A Sample Command Description</h4>
<a name="index-command-descriptions"></a>

<p>Command descriptions have a format similar to function descriptions,
except that the word &lsquo;Function&rsquo; is replaced by &lsquo;Command&rsquo;.  Commands are
functions that may be called without surrounding their arguments in
parentheses.  For example, here is the description for Octave&rsquo;s
<code>diary</code> command:
</p>
<dl>
<dt><a name="index-diary"></a>Command: <em></em> <strong>diary</strong></dt>
<dt><a name="index-diary-1"></a>Command: <em></em> <strong>diary</strong> <em>on</em></dt>
<dt><a name="index-diary-2"></a>Command: <em></em> <strong>diary</strong> <em>off</em></dt>
<dt><a name="index-diary-3"></a>Command: <em></em> <strong>diary</strong> <em><var>filename</var></em></dt>
<dd><p>Record a list of all commands <em>and</em> the output they produce, mixed
together just as they appear on the terminal.
</p>
<p>Valid options are:
</p>
<dl compact="compact">
<dt>on</dt>
<dd><p>Start recording a session in a file called <samp>diary</samp> in the
current working directory.
</p>
</dd>
<dt>off</dt>
<dd><p>Stop recording the session in the diary file.
</p>
</dd>
<dt><var>filename</var></dt>
<dd><p>Record the session in the file named <var>filename</var>.
</p></dd>
</dl>

<p>With no arguments, <code>diary</code> toggles the current diary state.
</p>
<p><strong>See also:</strong> history.
</p></dd></dl>





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