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<h3 class="section">2.2 Quitting Octave</h3>
<p><a name="index-exiting-octave-77"></a><a name="index-quitting-octave-78"></a>
<!-- toplev.cc -->
<a name="doc_002dquit"></a>
<div class="defun">
— Built-in Function: <b>exit</b> (<var>status</var>)<var><a name="index-exit-79"></a></var><br>
— Built-in Function: <b>quit</b> (<var>status</var>)<var><a name="index-quit-80"></a></var><br>
<blockquote><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></blockquote></div>
<!-- toplev.cc -->
<p><a name="doc_002datexit"></a>
<div class="defun">
— Built-in Function: <b>atexit</b> (<var>fcn</var>)<var><a name="index-atexit-81"></a></var><br>
— Built-in Function: <b>atexit</b> (<var>fcn, flag</var>)<var><a name="index-atexit-82"></a></var><br>
<blockquote><p>Register a function to be called when Octave exits. For example,
<pre class="example"> function last_words ()
disp ("Bye bye");
endfunction
atexit ("last_words");
</pre>
<p class="noindent">will print the message "Bye bye" when Octave exits.
<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,
<pre class="example"> atexit ("last_words", false);
</pre>
<p class="noindent">will remove the function from the list and Octave will not call
<code>last_words</code> when it exits.
<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></blockquote></div>
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