<EM>fd </EM>[function]

<DL COMPACT>
<DT> 
<DD> 
close a file specifying its file descriptor <EM>fd</EM>.
</DD>
</DL>
<BR>
<BR>

<A NAME="22498"></A>
<B>unix:dup</B> <EM>fd </EM>[function]

<DL COMPACT>
<DT> 
<DD> 
returns the duplicated file descriptor for <EM>fd</EM>.
</DD>
</DL>
<BR>
<BR>

<A NAME="22509"></A>
<B>unix:pipe</B> [function]

<DL COMPACT>
<DT> 
<DD> creates a pipe.
An io-stream for this pipe is returned.
</DD>
</DL>
<BR>
<BR>

<A NAME="22519"></A>
<B>unix:lseek</B> <EM>stream position [whenc