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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<H1>shell_default</H1>
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<H3>MODULE</H3>
<DIV CLASS=REFBODY>
shell_default
</DIV>

<H3>MODULE SUMMARY</H3>
<DIV CLASS=REFBODY>
Customizing the Erlang Environment
</DIV>

<H3>DESCRIPTION</H3>
<DIV CLASS=REFBODY>

<P>The functions in <CODE>shell_default</CODE> are called when no module
name is given in a shell command.


<P>Consider the following shell dialogue:
<PRE>
1 &#62; <STRONG>lists:reverse(&#34;abc&#34;).</STRONG>
&#34;cba&#34;
2 &#62; <STRONG>c(foo).</STRONG>
{ok, foo}
</PRE>

<P>In command one, the module <CODE>lists</CODE> is called. In command
two, no module name is specified. The shell searches the modules
<CODE>user_default</CODE> followed by <CODE>shell_default</CODE> for the
function <CODE>foo/1</CODE>.


<P><CODE>shell_default</CODE> is intended for &#34;system wide&#34;
customizations to the shell. <CODE>user_default</CODE> is intended for
&#34;local&#34; or individual user customizations.

</DIV>

<H3>Hint</H3>
<DIV CLASS=REFBODY>

<P>To add your own commands to the shell, create a module called
<CODE>user_default</CODE> and add the commands you want. Then add the
following line as the <STRONG>first</STRONG> line in your <CODE>.erlang</CODE> file in your
home directory. 
<PRE>
code:load_abs(&#34;$PATH/user_default&#34;).
</PRE>

<P><CODE>$PATH</CODE> is the directory where your
<CODE>user_default</CODE> module can be found.

</DIV>

<H3>AUTHORS</H3>
<DIV CLASS=REFBODY>
Joe Armstrong - support@erlang.ericsson.se<BR>
Robert Virding - support@erlang.ericsson.se<BR>

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<SMALL>stdlib 1.14.2<BR>
Copyright &copy; 1991-2006
<A HREF="http://www.erlang.se">Ericsson AB</A><BR>
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