directional stream through pipes.
<B>Piped-fork</B> returns the stream.
Following is a function to count the number of lines contained in a file
by using <TT>"wc"</TT>.
<PRE>
(defun count-lines (file) (read (piped-fork "wc" file)))
</PRE>

<P>
The next example creates eus process on another workstation identified by "etlic0"
and provides a port for distributed computation.

<P>
<PRE>
(setq ic0eus (piped-fork "rsh" "etlic0" "eus"))
(format ic0eus "(list 1 2 3)~%")
(read ic0eus) --&gt; (1 2 3)
</PRE>

<P>
For