<sect1 id="dads-sh-exec">

	<title>Use the <function>exec</function> statement in wrapper scripts</title>

	<para>If the port installs a shell script whose purpose is to launch

	  another program, and if launching that program is the last action

	  performed by the script, make sure to modify the script so that

	  it launches the program using the <function>exec</function>

	  statement, for instance:</para>

	<programlisting>#!/bin/sh

exec %%LOCALBASE%%/bin/java -jar %%DATADIR%%/foo.jar "$@"</programlisting>

	<para>The <function>exec</function> statement replaces the shell

	  process with the specified program. If <function>exec</function>

	  is omitted, the shell process remains in memory while the

	  program is executing, and needlessly consumes system

	  resources.</para>

      </sect1>