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The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

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Re: [vox-tech] dumb perl question
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Re: [vox-tech] dumb perl question

--- Peter Jay Salzman <p@dirac.org> wrote:
> 	/(\d+).*/;
> 	$temperature = $+;

$1 holds the \d+ matching, because it has parens. 
Multiple sets of parens will match $1, $2, ... based
on the left to right order of the parens.

If $temperature already had one or more digits \d+ and
some other junk, replace digits and junk with digits:

$temperature =~ s/(\d+).*/$1/; 

Note, if $temperature has a newline character in the
middle somewhere, then .* will not match it.


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