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From: maart@cs.vu.nl (Maarten Litmaath)
Newsgroups: comp.unix.questions
Subject: Re: Bourne Shell: Variable defined?
Keywords: Bourne shell, elementary question
Message-ID: <2196@solo2.cs.vu.nl>
Date: 22 Mar 89 05:34:25 GMT
References: <1819@umbc3.UMBC.EDU>
Organization: V.U. Informatica, Amsterdam, the Netherlands
Lines: 7

rostamia@umbc3.UMBC.EDU (Rouben Rostamian) writes:
\... how can I tell, in Bourne Shell, whether the variable "foo" exits.

[ ${foo+RTFM} ]
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