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<a name="Running-Octave"></a>
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Next: <a href="Simple-Examples.html#Simple-Examples" accesskey="n" rel="next">Simple Examples</a>, Up: <a href="Introduction.html#Introduction" accesskey="u" rel="up">Introduction</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="Running-Octave-1"></a>
<h3 class="section">1.1 Running Octave</h3>
<p>On most systems, Octave is started with the shell command ‘<samp>octave</samp>’.
This, by default, starts the graphical user interface (GUI). The central
window in the GUI is the Octave command-line interface. Octave displays
an initial message and then a prompt indicating it is ready to accept
input. If you have chosen the traditional command-line interface only
the command prompt appears. In any case, you can immediately begin
typing Octave commands.
</p>
<p>If you get into trouble, you can usually interrupt Octave by typing
<kbd>Control-C</kbd> (written <kbd>C-c</kbd> for short). <kbd>C-c</kbd> gets
its name from the fact that you type it by holding down <tt class="key">CTRL</tt> and
then pressing <tt class="key">c</tt>. Doing this will normally return you to Octave’s
prompt.
</p>
<a name="index-exiting-octave"></a>
<a name="index-quitting-octave"></a>
<p>To exit Octave, type <kbd>quit</kbd>, or <kbd>exit</kbd> at the Octave prompt.
</p>
<p>On systems that support job control, you can suspend Octave by sending
it a <code>SIGTSTP</code> signal, usually by typing <kbd>C-z</kbd>.
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