</code></li>

<li><code class="keyword">stdin</code></li>

<li><code class="keyword">stdout</code></li>

<li><code class="keyword">stderr</code></li>
</ul>
</li>

<li><code class="arg">offset</code> is the offset in bytes at which
the current position is to be set. The position from which the
offset is measured defaults to the start of the file, but can be
from the current location, or the end by setting <code class=
"arg">origin</code> appropriately.</li>

<li><code class="arg">origin</code> is the positio