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</div> <!-- #EndLibraryItem --><h1> enable</h1>
<p>Enable and disable builtin shell commands.</p>
<pre>Syntax
enable [-n] [-p] [-f <var>filename</var>] [-ads] [<var>name</var> ...]
Options
-a list each builtin with an indication of whether or not
it is enabled.
<samp>-d</samp> Delete a builtin loaded with <samp>`-f'</samp>.
-f load the new builtin command <i>name</i> from shared object <var>filename</var>,
on systems that support dynamic loading.
-n Disable the <i>name</i>s listed, otherwise names are enabled.
-p Print a list of shell builtins, default if no <var>name</var> arguments appear
With no other arguments, the list consists of all enabled shell builtins.
-s Restrict to enable only POSIX special builtins</pre>
<p> Disabling a builtin allows a disk command which has the same
name as a shell builtin to be executed without specifying a full pathname, even
though the shell normally searches for builtins before disk commands. <br>
<br>
For example, to use the <code>test</code> binary found via <code>$PATH</code>
instead of the shell builtin version, type <samp>`enable -n test'</samp>. <br>
<br>
If there are no options, a list of the shell builtins is displayed. <br>
<br>
If `-s' is used with `-f', the new builtin becomes a special builtin. <br>
<br>
The return status is zero unless a <i>name</i> is not a shell builtin or there
is an error loading a new builtin from a shared object. <br>
<br>
<i>You see things; and you say 'Why?' But I dream things that never were; and
I say 'why not?' - George
Bernard Shaw </i> </p>
<p><b>Related</b>:<br>
<a href="builtin.html"><br>
builtin</a> - Run a shell builtin<br>
<a href="chroot.html">chroot</a> - Run a command with a different root directory<br>
<a href="exec.html">exec</a> - Execute a command<br>
<a href="nohup.html">nohup</a> - Run a command immune to hangups<br>
<a href="su.html">su</a> - Run a command with substitute user and group id<br>
<a href="watch.html">watch</a> - Execute/display a program periodically<br>
<a href="source.html">.source</a> - Run commands from a file </p>
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