# spctl > Manage the security assessment policy subsystem. > Utility for managing Gatekeeper in macOS. > More information: . - Turn off Gatekeeper: `spctl --master-disable` - Add a rule to allow an application to run (labeling of rule is optional): `spctl --add --label {{rule_name}} {{path/to/file}}` - Turn on Gatekeeper: `spctl --master-enable` - List all rules on the system: `spctl --list`