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From: steinbac@hpl-opus.HP.COM (Gunter Steinbach)
Newsgroups: comp.unix.questions
Subject: Re: How do I ask "if NOT" in shell?
Message-ID: <63720012@hpl-opus.HP.COM>
Date: 26 Oct 89 17:32:11 GMT
References: <28381@shemp.CS.UCLA.EDU>
Organization: HP Labs, High Speed Electronics Dept., Palo Alto, CA
Lines: 21

From article <1989Oct26.041244.28325@sobmips.UUCP>, by roe@sobmips.UUCP
(r.peterson):
> I tried this:
> true && {
> 	echo true
> } || {
> 	echo false
> }
> and it functions fine.  Change true && to false && and it prints false
> correctly as well.

Neato!  I like it.  
But...  You have to be careful with nontrivial commands in the first
command group (the if true group):  Add a "false" command after the
first echo in your example, and it prints out both "true" and "false" -
not at all what you wanted.

So it is not a true "else" that only refers to the original test.

	 Guenter Steinbach	 |	 hplabs!gunter_steinbach
				 |	 gunter_steinbach@hplabs.hp.com