What is the correct syntax to use Execute program on Linux?

kayman

Hi there,

 

I currently have a CRON trigger that executes a script on a daily base on my server, but I want to be able to do the same from within Rapidminer on demand.

 

As far as I understand the Execute Command operator should allow me to do that, but as nothing seems to happen (also no errors thrown) I am not sure I use it correctly.

 

My command is a curl command that loads a json file to my elastic search environment. Running this as a standard bash or sh file works fine, all my data is loaded to elastic, but running the same command in the operator just does nothing. I get a green tick indicating the process ran fine, but no data is transfered.

 

My curl command is as follows :

 

curl -s -H "Content-Type: application/x-ndjson" -XPOST http://localhost:9200/_bulk --data-binary "@mydata.json"

 

And this is my process :

<?xml version="1.0" encoding="UTF-8"?><process version="7.6.001">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="7.6.001" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="productivity:execute_program" compatibility="7.6.001" expanded="true" height="103" name="Execute Program" width="90" x="112" y="34">
        <parameter key="command" value="curl -s -H &quot;Content-Type: application/x-ndjson&quot; -XPOST http://localhost:9200/_bulk --data-binary &quot;@mydata.json&quot;"/>
        <parameter key="working_directory" value="/data/elastic/imports"/>
        <list key="env_variables"/>
      </operator>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
    </process>
  </operator>
</process>

Any idea if I am using it correctly?

or other tips?

 

pschlunder

Hi @kayman,

since `curl` uses the current path as the destination (if not specified differently) it might already work. But don't expect the downloaded file at the output port of the Execute Script Operator. Try Execute Script with `pwd` to output the current path of the working directory the process is executed in and check manually if the downloaded file exists there.

 

If this doesn't work, please try executing your command without the `-s` option and post the log here.

 

Regards,

Philipp