IDash CLI not generating reports

Document ID : KB000118763
Last Modified Date : 31/10/2018
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Unable to generate an IDash report using the iDash CLI (Command Line Interface).
Why is the iDash CLI not able to generate a report? 
Instead, a message is generated:
Primary server url is empty and has to be specified in the idash config file 

The $IDASH_HOME/etc/idash.config file did not have the correct permissions. This file must have read permission by the user running the CLI command(s).
example permissions: