Re: ReturnsZero(): command does not return zero. Is class created with value of false?

[Hans Deragon]

This issue is definitively a bug with version 2.1.0b2.  I tried my cf script 
unchanged with 2.0.7p3 and it worked flawlessly.


Best regards,
Hans Deragon
--
Consultant en informatique/Software Consultant
Deragon Informatique inc.         Open source:
http://www.deragon.biz            http://swtmvcwrapper.sourceforge.net
mailto://hans@deragon.biz         http://autopoweroff.sourceforge.net


-------- Original Message --------
Message-ID: <3F7AD8EF.9040201@deragon.biz>
Date: Wed, 01 Oct 2003 09:38:55 -0400
From: Hans Deragon <hans@deragon.biz>
Organization: Deragon Informatique inc.
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To: help-cfengine@gnu.org
Subject: Re: ReturnsZero(): command does not return zero. Is class created with 
value of false?
References: <200310010425.h914PIFF020234@nexus.iu.hio.no>
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Mark.Burgess@iu.hio.no wrote:
> I'm sorry -- I didn't read this properly first time
> around. the problem is a misunderstanding of the ReturnZero()
> function. It is the value of the shell returncode that is tested
> not the value of the text string printed by the command.
> You will need to use StrCmp("0",$returnvar) if you want to test that.
> Since fgrep will always succeed if /etc/passwd exists, it will always
> return zero in the sense of ReturnZero().

...and again, you still have not read properly (or understand fgrep return
codes). :)  What I do is check for a user in the /etc/passwd:

[qhander@snah1 qhander] /bin/fgrep -c lmclxadm /etc/passwd
0
[qhander@snah1 qhander] echo $?
1

So the return code is 1.  accountexist is therefore not defined.  !accountexist
should trigger, but it does not.  Bug.

> I believe it is explained in the manual that classes are attributes
> that are either defined or not. It is certainly implicit in all
> of the docs, but whether or not it is clear is of course a matter
> of opinion! :)
>
> Mark

Mmmm... I would have brought a few changes to the documentation to make it
clearer.  But, now that I know...