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Date: Wed, 26 Nov 2014 07:18:25 +0000
From: Stephane Chazelas <stephane.chazelas@gmail.com>
To: Kurtis Rader <krader@skepticism.us>
Cc: Bart Schaefer <schaefer@brasslantern.com>,
	Zsh Users <zsh-users@zsh.org>
Subject: Re: export
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2014-11-25 20:54:39 -0800, Kurtis Rader:
> If by "fake it" you mean cooperative processes that implement a protocol
> for exchanging environment variables then, yes, you can achieve the result
> desired by Ray. However I think that everyone trying to achieve this result
> wants to do so without having to implement a new data exchange protocol in
> every program.
[...]

FYI, the "fish" shell does that.

set -U universal its value

and that $universal variable (here an array) becomes available
in all the fish shells (interactive or not) by the same user on
the machine (with all the security implications it entails).

-- 
Stephane