Date: Thu, 16 Nov 2006 23:45:51 +0300 From: Yar Tikhiy <yar@comp.chem.msu.su> To: Andrew Pantyukhin <infofarmer@FreeBSD.org> Cc: doc@FreeBSD.org Subject: Re: New article Message-ID: <20061116204551.GB49602@comp.chem.msu.su> In-Reply-To: <cb5206420610290918g2d6246bdhd3465d2e88f99e4f@mail.gmail.com> References: <20061015173531.GB31717@comp.chem.msu.su> <cb5206420610290918g2d6246bdhd3465d2e88f99e4f@mail.gmail.com>
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On Sun, Oct 29, 2006 at 08:18:50PM +0300, Andrew Pantyukhin wrote:
> On 10/15/06, Yar Tikhiy <yar@comp.chem.msu.su> wrote:
> >Hi folks,
>
> Great article, thanks!
Thank you!
> How about
> -eval "${rcvar}=\${${rcvar}:-'NO'}"
> +eval : \${${rcvar}='NO'}
> (a little more concise/readable; does not override
> explicit null value, which might not be valid, but
> should probably be respected all the same)
The former expression agrees better with the current style of rc.subr
and rc.d; in particular, null and unset values are treated the same.
--
Yar
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