Date: Mon, 3 Jan 2005 16:47:59 -0500 From: Timothy Luoma <lists@tntluoma.com> To: Eric F Crist <ecrist@secure-computing.net> Cc: FreeBSD-Questions Questions <freebsd-questions@freebsd.org> Subject: Re: my lame attempt at a shell script... Message-ID: <22B51A59-5DD1-11D9-89A5-000D93AD26C8@tntluoma.com> In-Reply-To: <4BFD88E8-5DCE-11D9-B56F-000D9333E43C@secure-computing.net> References: <06DDB71C-5DB4-11D9-B56F-000D9333E43C@secure-computing.net> <15416223037.20050103193803@hexren.net> <6074EB8D-5DC6-11D9-89A5-000D93AD26C8@tntluoma.com> <F0BE3E23-5DC8-11D9-B56F-000D9333E43C@secure-computing.net> <0CE27994-5DCD-11D9-89A5-000D93AD26C8@tntluoma.com> <4BFD88E8-5DCE-11D9-B56F-000D9333E43C@secure-computing.net>
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On Jan 3, 2005, at 4:27 PM, Eric F Crist wrote:
> Good to know. If I want to validate, like my first example, against
> some variables, how would I do that best. Say, for example, I have 4
> possible entries for grog_firewall_enable but I want to single out
> three of them:
>
> if [ "$grog_firewall_enable" <> "YES" OR "NO" OR "OPEN" ]
>
> is this the correct syntax? Can't seem to figure this one out.
Instead of <> you want to use != when working in (ba)sh.
I no of no way to test A != (B or C or D) on one line like that in bash.
I think the closest you can come is using 'case':
case $grog_firewall_enable in
YES|NO|OPEN)
:
;;
*)
echo Illegal value for grog_firewall_enable
;;
esac
the ":" in that case is just a placeholder. You could replace it with
some commands, even your previous IF/ELIF statements if you wanted to.
TjL
ps - in case it wasn't obvious, and it wasn't to me when I first
started, "fi" is "if" spelled backwards and "esac" is "case" spelled
backwards. Makes it easier to remember how to spell them correctly ;-)
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