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Subject: Re: /bin/sh => STDIN & functions, var scope messing
From: Reid Linnemann <linnemannr@gmail.com>
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Date: Tue, 28 May 2013 10:07:58 -0500
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To: Ryan Stone <rysto32@gmail.com>
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On May 28, 2013, at 7:00 AM, Ryan Stone <rysto32@gmail.com> wrote:

> On Tue, May 28, 2013 at 5:48 AM, V=E1clav Zeman <vhaisman@gmail.com> =
wrote:
> Curious. Which of the two behaviours is POSIXly correct?
>=20
> I believe that /bin/sh's behaviour is correct.  I don't know what =
shell the manpage is referring to, but it's not bash (bash does the same =
thing in a pipeline).  Perhaps it's referring to csh?  If that is the =
case that line is probably causing more confusion rather than =
alleviating it.

I believe it's referring to csh, possible ksh as well. I tried a similar =
experiment with tcsh:

#!/bin/tcsh
alias fn set var=3D12
set var=3D
echo $var
yes | fn
echo $var=