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20030505: Multiple PIPEs in pqact.conf entry?

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  • Subject: 20030505: Multiple PIPEs in pqact.conf entry?
  • Date: Mon, 5 May 2003 13:53:35 -0600

Tim,

If you are PIPE'ing a specific data set to dcgrib2, then,
you could instead use "PIPE     -close" to a shell script
which sequentially runs dcgrib2 accepting the input from
stdin, followed by the execution of your postprocessing commands

For example, in pqact.conf:

CMC     CMC_GEM_reg
        PIPE    -close  util/cmcgribproc.csh

And, in ~ldm/util/ a shell script cmcgribproc.csh can look like:

#!/bin/csh -f
source ~ldm/.cshrc
source ~gempak/Gemenviron

dcgrib2 -d $GEMDATA/logs/cmcgrib.log YYYYMMDDHH_cmc.gem && \
   ~ldm/util/cmcpostproc.csh

exit 0

##########################################################


The script should set up the appropriate environment, including
sourcing Gemenviron. Dcgrib2 will read from standard in. You can
either chain together your postprocessing commands as above using "&&",
or, follow up the dcgrib2 command with your appropriate script commands.


Steve Chiswell




On Mon, 5 May 2003, Tim Alberta wrote:

> Hi,
>
> I need to execute a second script after my dcgrib2 decoder is finished.
> The script adds some precip products to the gempak file dcgrib2
> produced.  Is there a way to add an additional PIPE or EXEC statement to
> my pqact.conf entry?  What is the best way to go about getting the
> second script to run immediately after dcgrib2 has finished?
>
> It seems like I'm missing something really simple here, but I'm not sure
> how to proceed.
>
> Thanks in advance,
>
> Tim Alberta
>