How can you turn off the group quota in /pub?

`quotaoff/pub` is missing the necessary flag to specify whether user or group quota (or both) should be turned off.

The `quotaoff` command is used to disable disk quotas on a filesystem. The `-g` option specifically targets group quotas, and `/pub` specifies the mount point where the quota should be turned off.

`quotadown` is not a standard Linux command for managing quotas.

Deleting the quota file with `rm /pub/quota.group` would remove the quota data but doesn't gracefully turn off the quota subsystem, which could lead to errors or inconsistencies.