Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!agate!shelby!portia!forel!karish
From: karish@forel.stanford.edu (Chuck Karish)
Newsgroups: comp.unix.questions
Subject: Re: indirect shell-vars
Message-ID: <5265@portia.Stanford.EDU>
Date: 12 Sep 89 21:18:24 GMT
References: <627@targon.UUCP>
Sender: USENET News System <news@Portia.stanford.edu>
Reply-To: karish@forel.stanford.edu (Chuck Karish)
Organization: Mindcraft, Inc.
Lines: 18

In article <627@targon.UUCP> ruud@targon.UUCP (Ruud Harmsen) wrote:
 >I'm looking for a way to reference a variable in the Bourne-shell,
 >whose name is given in another variable.  I found the following solution
 >using a sub-shell myself, but it seems rather clumsy:.

 >export x1; x1=one
 >export x2; x2=two
 >echo which var\?
 >read xx
 >sh -c "echo \$x`echo $xx`"

eval echo \$x$xx

By escaping some of the `$' signs, you can cause eval to expand the
variables in the desired order.

	Chuck Karish		karish@mindcraft.com
	(415) 493-9000		karish@forel.stanford.edu