sudo subscription-manager unsubscribe
One of --serial or --all must be provided
Usage: subscription-manager unsubscribe [OPTIONS]

Unsubscribe the machine from all or specific subscriptions

Options:
  -h, --help            show this help message and exit
  --proxy=PROXY_URL     proxy url in the form of proxy_hostname:proxy_port
  --proxyuser=PROXY_USER
                        user for http proxy with basic authentication
  --proxypassword=PROXY_PASSWORD
                        password for http proxy with basic authentication
  --serial=SERIAL       Certificate serial to unsubscribe
  --all                 Unsubscribe from all subscriptions



sudo subscription-manager redeem
Network error, unable to connect to server.
 Please see /var/log/rhsm/rhsm.log for more information.



sudo subscription-manager environments
you must specify an --org



sudo subscription-manager orgs
Username:



sudo subscription-manager list
No installed Products to list

sudo subscription-manager register
This system is already registered. Use --force to override