Re: [ldm-users] understanding the PIPE action

• To: "daryl herzmann" <akrherz@xxxxxxxxxxx>
• Subject: Re: [ldm-users] understanding the PIPE action
• From: "Jeffrey Lake - Admin" <admin@xxxxxxxxxxxxxxxxxxxx>
• Date: Sun, 7 Jun 2009 15:02:43 -0400

Thanks to Daryl and all,
I will leave it the way I currently have it set,
LDM writes it to a file, then fires off the php script to do
with it what is needed, I thought maybe I could eliminate
a step but probably not ..

-Jeff



Hi Jeff,

On Sun, 7 Jun 2009, Jeffrey Lake - Admin wrote:

> I am attempting to get a hold of the PIPE action in LDM.
> here is what I have as a test in my pqact.conf
> ------------------------------------------
> #TEST
> DDPLUS[tab] ^.*/pSVR
> [tab]PIPE[tab]decoders/test.sh
> -----------------------------------------
> and the test.sh script
> ----------------------------------------------
> #!/bin/sh
> php /usr/local/ldm/decoders/test.php "$1"
> ----------------------------------------------

LDM pipes the product over STDIN for the script and works much like how 
the UNIX pipe command (|) works.  You can test this outside of LDM by 
simply doing so:

cat SVR.txt | php test.php SVR

I have never read stdin with PHP, so perhaps you can use your shell script 
wrapper to help out.

#!/bin/sh

# Place STDIN into this file
cat > /tmp/tmpfile.$$
php /usr/local/ldm/decoders/test.php "$1" "/tmp/tmpfile.$$"

daryl

-- 
/**
  * Daryl Herzmann
  * Assistant Scientist -- Iowa Environmental Mesonet
  * http://mesonet.agron.iastate.edu
  */

• Follow-Ups:
  • Re: [ldm-users] understanding the PIPE action
    • From: Matt Alonso

• References:
  • [ldm-users] understanding the PIPE action
    • From: Jeffrey Lake - Admin
  • Re: [ldm-users] understanding the PIPE action
    • From: daryl herzmann