This is used to make sure that only one instance of
<code class="filename">program</code> is running at the same time.
Specify a different filename with <code class="option">pid</code> to start a second
copy of <code class="filename">program</code>.</p></dd><dt><span class="term">-respawn</span></dt><dd><p>
Restart <code class="filename">program</code> if it terminates.
Normally
This is used to make sure that only one instance of
<code class="filename">program</code> is running at the same time.
Specify a different filename with <code class="option">pid</code> to start a second
copy of <code class="filename">program</code>.</p></dd><dt><span class="term">-respawn</span></dt><dd><p>
Restart <code class="filename">program</code> if it terminates.
Normally