DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:to:subject:date:message-id:content-type
	:content-transfer-encoding:mime-version; q=dns; s=default; b=meW
	Oe/pqMezUPONkDCPn39co0b3MrxU6Ccaqe34DVxSIsuoUMWJnabIpFztyWPVf7v0
	47UU4EILux1FRZfM+f2Oi9d4oNzKyXQ5V+KYpYq6INn4iXekMl2kito2XFxn+sUv
	7g1Ui0e0MjadRDThrz5cN0y1GASbBYvu2mR5jfn4=
Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm
Sender: cygwin-owner@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
From: Ole Tange <ota@prosa.dk>
To: "cygwin@cygwin.com" <cygwin@cygwin.com>
Subject: grep < fifo fails
Date: Wed, 3 Oct 2018 15:37:14 +0000
Message-ID: <d56a12c77ecc441ca7dc2e8e1862145c@prosa.dk>
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

This works:

$ mkfifo fifo
$ echo > fifo & grep .  fifo
[1] 10232
[1]+  Done                    echo > fifo

But this fails:

$ echo > fifo & grep . < fifo
[1] 11756
grep: (standard input): Invalid argument
[1]+  Done                    echo > fifo

I see the same behavior on MINGW, but I do not see the same behavior on GNU/Linux.


Regards,

Ole Tange


--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple