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Date: Sat, 29 Nov 2008 18:19:03 -0700
From: "Tim Judd" <tajudd@gmail.com>
To: perryh@pluto.rain.com
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Cc: freebsd-questions@freebsd.org
Subject: Re: shell scripting problems
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This seems to be the ticket.  I'll be watching it but now I have an example
on how to dual-quote a string.

Thanks very much, Perry

On Sat, Nov 29, 2008 at 1:37 AM, <perryh@pluto.rain.com> wrote:

> > In the shell script, i have a
> >   pkg_info -qLx "^$PKG-[0-9,._]+$"
> > also tried (-X)tended regex instead of the standard rege(-x).
> >
> > sh keeps erroring out saying various $" isn't a valid variable
> > name ...
>
> Both sh and csh will try to treat $ inside of "" as a variable
> reference.  Does it work any better if you enclose the $ in ''
> instead?
>
> If you need the first $ to be a variable reference and the second
> to be used literally, you may need to do something like
>
>  "^$PKG-[0-9,._]+"'$'
>