How to Add Gatekeeper Exceptions from Command Line in Mac OS X

Typically if you want to have an application launch approved by the GateKeeper feature on a Mac, you right-click on the unidentified developers application and choose “Open”, or go through System Preferences to bypass Gatekeeper that way. Another option is to manually add application approvals and exceptions to Gatekeeper by turning to the command line in Mac OS X.














Many Mac users arriving from the land of Windows PC keyboards will notice that the Apple keyboards as well as those included on a MacBook, MacBook Air, or MacBook Pro do not have the standard “Page Up” and “Page Down” keys. This does not mean you can’t page up and page down on a Mac, however, and, 
