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Date:	Wed, 29 Dec 1993 22:42:16 -0500
To:	drazen@vlsi.cs.caltech.edu (drazen)
From:	haahr@kaleida.com (Paul Haahr)
X-Sender: haahr@talisman.kaleida.com
Subject: Re: `{prog args} versus `(prog args)
Cc:	rc@hawkwind.utcs.toronto.edu

> Is there a "real" difference between
>     ; x = `{prog args ...}      
>and
>     ; x = `(prog args ...)     

yes.  `() can contain only words, not things like redirections and pipes,
whereas `{} can contain any rc commands.  that `() works is just a happy
accident of the orthogonality of rc.

paul