A simple way to reduce the number of jobs or job-chains is to use a generic job.
<job order="yes"
stop_on_error="no"
title="This job is a example showing the generic execution of a shell-script or a shell-command">
<script language="shell">
<![CDATA[
'''echo %SCHEDULER_PARAM_SCRIPT2EXECUTE%'''
'''%SCHEDULER_PARAM_SCRIPT2EXECUTE%'''
]]>
</script>
<run_time/>
</job>
This job will execute a script or a command which name is specfied with the parameter "Script2Execute".
Putting this job in a chain like the one below
<job_chain orders_recoverable="yes"
visible="yes"
title="ShellExecutor: generic Execution of a shell-script or a command">
<job_chain_node state="Step.100"
job="GenericShellExecutor"
next_state="success"
error_state="error"/>
<job_chain_node state="success"/>
<job_chain_node state="error"/>
</job_chain>
will start this job every time an order for the chain is scheduled like this one:
<order>
<params>
<param name="Script2Execute"
'''value="dir c:\temp"/>'''
</params>
<run_time let_run="no"/>
</order>
At the end, one have to create for each script/command to execute an additional order.