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From: dupuy@amsterdam.columbia.edu (Alexander Dupuy)
Newsgroups: comp.unix.questions
Subject: Re: Environment variables
Message-ID: <4942@columbia.edu>
Date: Tue, 25-Aug-87 19:59:10 EDT
Article-I.D.: columbia.4942
Posted: Tue Aug 25 19:59:10 1987
Date-Received: Thu, 27-Aug-87 03:56:39 EDT
References: <626@unmvax.unm.edu> <2876@phri.UUCP>
Sender: nobody@columbia.edu
Reply-To: dupuy@amsterdam.columbia.edu (Alexander Dupuy)
Followup-To: comp.unix.questions
Organization: Columbia University Computer Science Dept.
Lines: 23

In article <2876@phri.UUCP> roy@phri.UUCP (Roy Smith) writes:
>In <626@unmvax.unm.edu> mike@turing.UNM.EDU.UUCP (Michael I. Bushnell) writes:
>> How can I determine if an environment variable is set using csh?
>> (I.e., in a script)  
>
>	After a bit of experimentation, I came up with the following
>
[c-shell script using `printenv` deleted]


maybe this is a stupid answer, but have you tried $?VARIABLE ?

% echo $?TERM
1
% echo $?FOO
0

I know I have a ( hacked) version of the 4.3 csh, but it does work for me.

@alex
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