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h1. Passing parameters to shell-scripts
User defined Parameters in Shell-Scripts
Job parameter and order params are accessible by the use of environment variables. There is a rule for the name of such an environment variable. The name of the environment variable according to a parameter is SCHEDULER_PARAM_NAMEOFPARAM. For example the job parameter param1 is available by the environment variable SCHEDULER_PARAM_PARAM1 (always in upper case letters).
Sample
| Code Block |
|---|
<job>
<params>
<param name="param1" value="Test"/>
</params>
<script language="shell">
<![CDATA[
rem This is a sample shell script to demonstrate the use of parameters
echo Param1 has the value %scheduler_param_param1%
]]>
</script>
<run_time/>
</job>
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for Linux
| Code Block |
|---|
<job>
<params>
<param name="param1" value="Test"/>
</params>
<script language="shell">
<![CDATA[
# This is a sample shell script to demonstrate the use of parameters
echo Param1 has the value $SCHEDULER_PARAM_PARAM1
]]>
</script>
<run_time/>
</job
|
If you want to use the parameters as parameters for a script in the command-line just append the Names to the Scriptname:
| Code Block |
|---|
anyshellscript.sh $SCHEDULER_PARAM_PARAM1 $SCHEDULER_PARAM_PARM2 ... |
Setting Parameter in Shell-Scripts and put them to the next node in job chains.
At every change of status in job chains Job Scheduler parses a temporary file for "namh1. value" pairs. The "namevalue" pairs will be set as order params. The name of the temporary file is available with the environment variable SCHEDULER_RETURN_VALUES.
First Job
| Code Block |
|---|
<job order="yes"
stop_on_error="no">
<params>
<param name="param1" value="Test"/>
</params>
<script language="shell">
<![CDATA[
rem This is a sample shell script to demonstrate the use of parameters
echo newParam=a sample value >> %scheduler_return_values%
]]>
</script>
<run_time/>
</job>
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Second Job
| Code Block |
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<job order="yes"
stop_on_error="no">
<params>
<param name="param1" value="Test"/>
</params>
<script language="shell">
<![CDATA[
echo newParam has the value %scheduler_param_newParam%
]]>
</script>
<run_time/>
</job>
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Job Chain
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<job_chain>
<job_chain_node state="100"
job="job_sample_shell_with_parameter"
next_state="200"
error_state="error"/>
<job_chain_node state="200"
job="job_sample_shell"
next_state="success"
error_state="error"/>
<job_chain_node state="success"/>
<job_chain_node state="error"/>
</job_chain>
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related downloads:
see also: