From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <43797a19394ce8f10a30710c76d1d46b@vitanuova.com>
Date: Thu, 31 Aug 2006 21:24:58 +0100
From: rog@vitanuova.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] trying to understand how fork/pipe a filtering program
In-Reply-To: <200608311955.k7VJtwv29679@demeter.cs.utwente.nl>
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oops skim reading again! i'd thought i'd read "using two pipes unidirectionally *doesn't* make it work."
so why can't you just use two pipes unidirectionally? you can't do anything
else in this example, because by using the same pipe for input and output,
the command itself keeps its own input open, and therefore never receives EOF.