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• The reason is with the JS7 - Job Resources from the archive Defaults.zip that is offered from JS7 - Download. After import this archive is extracted to a JOC Cockpit folder with the name Defaults and a job resource with the name Default. Find details from JS7 - Job Environment Variables.

• The Default job resource includes an argument with the name js7AgentHostname and an environment variable with the name JS7_AGENT_HOSTNAME. By default the argument is assigned this value:

  Code Block
  js7AgentHostname = env('HOSTNAME', env('COMPUTERNAME'))

• The expression first makes use of a HOSTNAME environment variable (available for most Unix systems) and if this does not exist uses the COMPUTERNAME environment variable (available for Windows systems). Therefore running a job that makes use of the Default job resource on a Unix OS that does not provide the HOSTNAME environment variable causes the error.

• The HOSTNAME environment variable that is assumed from the Job Resource in fact is a bash variable and might not be available if some other shell such as ksh, tsh is used or if the Agent's account is not assigned the bash shell in /etc/passwd.

The assignment of the js7AgentHostname argument is performed in the Configuration view for Job Resources like this:

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• The env() function makes use of two arguments: the first argument specifies an environment variable, the second argument specifies a default value should the environment variable not exist.
• Adding an empty default value - specified by two double quotes - as provided from the above example resolves the problem.
• To apply changes deploy the job resource after modification.
• As an alternative to this solution users can assign the /bin/bash shell to the user account used by the Agent.