[tpm] quicky regex question

[Fulko Hew]

given the sample pattern:

00.99.88.77.66.55.44.33.22.11

and I wanted to extract the 'n' amount of number-dot sequences
how do I do it?

I tried something like /^(\d*\.){$n}/
but that only got me the 'nth' number, not everything preceding it also.

ie if n=7

I want:   '00.99.88.77.66.55.44'
not just:
 '.44'

TIA
Fulko
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