varnishlog filtering on host

[Gaute Amundsen]

Hi. 
Just a quick question before I dig into it myself.

How would you call varnishlog to verify hits and misses when adding a new host 
to a varnish that allready has some traffic? 

I need to work a bit to clean up old sinns with unnessesary cookies, forms 
with GET methods, and the like...

I am looking at piping varnishlog -o thru a script to filter on hostname, and 
then pick out the relevant fields.

Or is this doable with the right regexp perhaps?

Regards

Gaute Amundsen