From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from groucho.cs.psu.edu ([130.203.2.10]) by archone.tamu.edu with SMTP id <45327>; Thu, 9 Apr 1992 19:07:32 -0500
Received: by groucho.cs.psu.edu id <2538>; Thu, 9 Apr 1992 20:06:44 -0400
From: Scott Schwartz <schwartz@groucho.cs.psu.edu>
To: rc@archone.tamu.edu
Subject: eval vs &
Message-Id: <92Apr9.200644edt.2538@groucho.cs.psu.edu>
Date: Thu, 9 Apr 1992 19:06:34 -0500


Consider this:

; x='sleep 3'
; eval $x &
16105
; x='sleep 3 &'
; eval $x
; # No pid?

/bin/sh would print the pid.

(Speaking of asynchronous processes, I kind of miss getting exit
notification and being able to find out what their exit status is ala
csh.  It's not as if rc isn't doing the wait() already.  Maybe when
file completion is done.... :-))