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From: kirkaas@oahu.cs.ucla.edu (paul kirkaas)
Newsgroups: comp.unix.questions
Subject: How do I ask "if NOT" in shell?
Message-ID: <28381@shemp.CS.UCLA.EDU>
Date: 22 Oct 89 23:13:27 GMT
Sender: news@CS.UCLA.EDU
Reply-To: kirkaas@oahu.UUCP (paul kirkaas)
Organization: UCLA Computer Science Department
Lines: 15

How can one say "if not" in a shellscript; that is, execute the body of
the "then" only if the argument of "if" returns a non-zero exit status?

I would like something like:

if ! TESTCOMMAND
then
	BODY
fi

Stupid question?   Trivial answer?   I hope so.  Thanks.


Paul Kirkaas
kirkaas@cs.ucla.edu