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<a name="Quitting-Octave"></a>
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<p>
Next: <a href="Getting-Help.html#Getting-Help" accesskey="n" rel="next">Getting Help</a>, Previous: <a href="Invoking-Octave-from-the-Command-Line.html#Invoking-Octave-from-the-Command-Line" accesskey="p" rel="prev">Invoking Octave from the Command Line</a>, Up: <a href="Getting-Started.html#Getting-Started" accesskey="u" rel="up">Getting Started</a> [<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="Quitting-Octave-1"></a>
<h3 class="section">2.2 Quitting Octave</h3>
<a name="index-exiting-octave-1"></a>
<a name="index-quitting-octave-1"></a>
<a name="XREFquit"></a><dl>
<dt><a name="index-exit"></a>Built-in Function: <em></em> <strong>exit</strong> <em>(<var>status</var>)</em></dt>
<dt><a name="index-quit"></a>Built-in Function: <em></em> <strong>quit</strong> <em>(<var>status</var>)</em></dt>
<dd><p>Exit the current Octave session. If the optional integer value
<var>status</var> is supplied, pass that value to the operating system as the
Octave’s exit status. The default value is zero.
</p></dd></dl>
<a name="XREFatexit"></a><dl>
<dt><a name="index-atexit"></a>Built-in Function: <em></em> <strong>atexit</strong> <em>(<var>fcn</var>)</em></dt>
<dt><a name="index-atexit-1"></a>Built-in Function: <em></em> <strong>atexit</strong> <em>(<var>fcn</var>, <var>flag</var>)</em></dt>
<dd><p>Register a function to be called when Octave exits. For example,
</p>
<div class="example">
<pre class="example">function last_words ()
disp ("Bye bye");
endfunction
atexit ("last_words");
</pre></div>
<p>will print the message <code>"Bye bye"</code> when Octave exits.
</p>
<p>The additional argument <var>flag</var> will register or unregister
<var>fcn</var> from the list of functions to be called when Octave
exits. If <var>flag</var> is true, the function is registered, and if
<var>flag</var> is false, it is unregistered. For example,
after registering the function <code>last_words</code> above,
</p>
<div class="example">
<pre class="example">atexit ("last_words", false);
</pre></div>
<p>will remove the function from the list and Octave will not call
<code>last_words</code> when it exits.
</p>
<p>Note that <code>atexit</code> only removes the first occurrence of a function
from the list, so if a function was placed in the list multiple
times with <code>atexit</code>, it must also be removed from the list
multiple times.
</p></dd></dl>
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