The instructions for installing the oc-compliance CLI plugin are missing the final step. Before the oc-compliance plugin will work, you have to execute the following command:

export PATH=~/.local/bin:$PATH

Affected section is: 

5.6.8.1. Installing the oc-compliance plugin 

https://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/security_and_compliance/compliance-operator#installing-oc-compliance_oc-compliance-plug-in-understanding 

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