ID</code> <code class="arg">offset</code> <code class=
"arg">?origin?</code></dt>

<dd>Change the current position within the file referenced by <code
class="arg">fileID</code>. Note that if the file was opened with
"a" <code class="arg">access</code> that the current position can
not be set before the end of the file for writing, but can be set
to the beginning of the file for reading. 

<ul>
<li><code class="arg">fileID</code> is one of: 

<ul>
<li>a File identifier returned by <code class=
"keyword">open