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20050610: filtering data in pqact.conf

Clint,

Here is a regular expression that will avoid the hybrid levels in
the RUC2 data:
RUC2/#252/.*/F000/.*/[^h]
The advantage here is that you can use the pattern regex processing
if you need the date/parameter/forecast information for a "FILE" action
regular expression replacement.

I'll let Steve answer question about implementing "execpt" in pqact.conf.

Steve Chiswell
Unidata User SUpport

>From: Clint Rowe <address@hidden>
>Organization: University of Nebraska Geosciences
>Keywords: 200506101716.j5AHGZZu007847

>Hi folks,
>
>I want to save the RUC 252 F000 grids for a project I'm working on,
>but I don't need the hybrid level data and would like to exclude
>them so that daily files will be of a reasonable size.  Here's what
>I have that is working:
>
>1) install the ldm on a separate machine with the following sole
>   request in ldmd.conf  (i.e., ask for all RUC 252 F000 grids)
>   request CONDUIT "MT.ruc.*#252.*F000" papagayo.unl.edu
>
>2) use the following pqact.conf actions
>   CONDUIT (MT.ruc.*hybrid)        NOOP
>   CONDUIT ^_ELSE_$
>        PIPE    /apps/nawips/NAWIPS/bin/linux/dcgrib2 
>       -d /SH_data/gempak/logs/dcgrib2_RUC.log
>        -e GEMTBL=/SH_data/gempak/tables
>
>   (i.e., send the hybrid levels to the bit bucket and everything
>   else to the decoder)
>
>My question is -- is there an easier way to exclude a specific
>pattern in a pqact action?  If not, why not?  If there is (or
>could be), I wouldn't have to set up a separate ldm.
>
>Clint
>-- 
>====================================================================
>Clinton M. Rowe
>Associate Professor
>Meteorology/Climatology Program                  phone:(402)472-1946
>Department of Geosciences                          fax:(402)472-4917
>University of Nebraska-Lincoln                        address@hidden
>
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