the variables supported by the <code>ExecEnviron</code> directive
may also be used in the script argument list.

<p>
<b>Important</b>: use of <code>DefaultRoot</code> will cause complications
(to be elaborated upon soon).

<p>
Example:
<pre>
  ExecBeforeCommand RETR /path/to/ftp-prep --file %f
</pre>

<p>
See Also:
  <a href="#ExecEnviron">ExecEnviron</a>,
  <a href="#ExecOnCommand">ExecOnCommand</a>,
  <a href="#ExecOnConnect">ExecOnConnect</a>,
  <a href="#ExecOnError">ExecOnError</a>,
  <a href="#ExecOnE