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Date: Sun, 14 Feb 2010 20:53:20 -0500
From: Christopher Faylor <cgf-use-the-mailinglist-please@cygwin.com>
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Subject: Re: Tee broken under process substitution?
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On Mon, Feb 08, 2010 at 11:08:15PM +0000, Greg Chicares wrote:
>On 2010-02-08 22:34Z, Ryan Johnson wrote:
>> 
>> cygwin$ echo hi | tee >(cat)
>> hi
>> tee: /dev/fd/63: Bad file descriptor
>
>I don't know a workaround, but FWIW this looks similar:
>  http://cygwin.com/ml/cygwin/2010-01/threads.html#00942

My musing in the above thread was apparently incorrect.  This
has nothing to do with my buggy fifo implementation.  I did a little
more checking on this and the problem is that something like this
doesn't work right now in cygwin:

echo hello >/proc/self/fd/1

when it should.  Implementing this isn't too tricky.  However,
implementing the more general:

echo hello >/proc/<some-other-pid>/fd/1

is harder.

cgf

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