mething like:

<blockquote>
<pre>
#!/bin/bash
</pre>
</blockquote>

or the task will fail as follows:

<blockquote>
<pre>
[exec] Warning: UNIXProcess.forkAndExec native error: Exec format error
[exec] Result: 255
</pre>
</blockquote>
</p>

<h4><a name="background">Running Ant as a background process on
    Unix(-like) systems</a></h4>

<p>If you run Ant as a background process (like <code>ant &</code>)
  and use the <code>&lt;exec&gt;</code> task with <code>spawn</code>
  set to <code>false</code>, you must