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Date: Mon, 27 May 2013 14:58:20 -0500
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Subject: Re: /bin/sh => STDIN & functions, var scope messing
From: Reid Linnemann <linnemannr@gmail.com>
To: rank1seeker@gmail.com
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from SH(1)

"Note that unlike some other shells, sh executes each process in a pipe-
     line with more than one command in a subshell environment and as a
child
     of the sh process."

I'm taking this to mean that redirecting to sh_f has sh_f execute in a
subshell in which global_scope_var changes, but the original shell's copy
is uncahnged.



On Mon, May 27, 2013 at 2:42 PM, <rank1seeker@gmail.com> wrote:

> 9.1-RELEASE-p3
> ---------------
> #!/bin/sh
>
> sh_f ()
> {
>     global_scope_var=3D7463457
> }
>
> yes | sh_f
> echo "$global_scope_var"
>
> echo '
> Now without /usr/bin/yes (maybe it is STDIN issue, instead) ?!?
> '
>
> sh_f
> echo "$global_scope_var"
> ---------------
>
>
> Domagoj Smol=C4=8Di=C4=87
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