db> OS2     Extract         F:\bin\unzip -Ujos %a *.[Pp][Kk][Tt]

Thanks for that.  I couldn't think of a way of ensuring that
both *.pkt and *.PKT would come out.  I've put that in now,
and it will be "live tested" by the next caller.  BFN.  Paul.
@EOT:

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