Date: Mon, 27 Dec 1999 03:24:24 +1100 From: aunty <aunty@comcen.com.au> To: Mark Ovens <mark@dogma.freebsd-uk.eu.org> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: shell quoting problem? Message-ID: <19991227032424.E17780@comcen.com.au> In-Reply-To: <19991226154822.C327@marder-1> References: <19991227014716.D17780@comcen.com.au> <19991226154822.C327@marder-1>
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On Sun, Dec 26, 1999 at 03:48:22PM +0000, Mark Ovens wrote:
> On Mon, Dec 27, 1999 at 01:47:16AM +1100, aunty wrote:
> > After setting some variables in a bourne shell script, I want it
> > to run a command like
> > finger @nas1 | egrep "Host|tom|dick|harry"
> > where nas1, tom, dick, and harry are expanded from variables.
> >
> > I can see _why_ things like this don't work
> > finger \@${serv} | egrep \"Host${pipes-and-names}\"
> > but can't figure out how to get all those quotes and pipes behaving.
> >
> > Is there a way to do this or must I resort to perl?
> >
>
> Not quite sure exactly what you are trying to do here,
If you go
finger @host.domain.com
you get a list of users online (usually forbidden these days).
I'm grepping that list for particular people's names.
These names and the host name are all generated from a script.
> but whenever I use egrep(1) I always use ``()'' thus:
>
> # finger @nas1 | egrep '(tom|dick|harry)'
>
> Does this help at all?
Yes thanks, that's a big improvement for the right hand side.
Now it echoes fine from the script but I get no output from the
command, probably the fault of that pesky pipe in the middle.
> Merry Xmas.
Ooooooh, yeah I forgot :-) We've just finished Boxing Day here.
Merry whatever you're celebrating!
--
Regards,
-*Sue*-
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