introduction and: does 'exec' cache the results?

Good morning folks.  I'm new here - I don't even know how much traffic is on
this list, if any.

I'm constructing a Cricket config to monitor our Nagios monitoring system,
and I'm basically running nagiostat -m
-dLOTS,OF,Arguments,here,to,pull,info,from,nagios.  To do that, I have
several lines like this:
    ds-source = "exec:XX:%nagarg%"

where XX is a running number.

Now, the question I have is this:
   Does cricket run the %nagarg% command once, and caches it?  Or is the
%nagarg% run approximately 60 times?

Cheers, and thanks in advance,
--
EinarI
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