Re: [ldm-users] understanding the PIPE action

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
 */



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