
Remember this method only effects items you choose to specify.

If you want to remove the that warning message from all in your ~/Downloads directory, you can type the following command: Removing the Open Warning from All Files in a Directory

Are you sure you want to open it?” on a per application basis by using the following command string in Terminal, pointing the path to the actual location of the application triggering the warning itself:

If you want to, you you can remove the “ is an application downloaded from the internet. How to Disable Application Downloaded from Internet Warning on a Per App Basis in Mac OS X
