code-signingmacosSecurityterminal
I've got my Security preferences set to allow apps downloaded from "Mac App Store and identified developers." When I try to open an unsigned app:
open xyz.app
I see the following:
Usually, I right-click on the app and click "Open". This brings up a similar dialogue, but this one includes an "open anyway"-type button:
Is there a way to do this only using the open command — something like:
open --even-if-unsigned xyz.app
A feature of OS X Mountain Lion is the ability to run only signed applications - that is, applications from Apple's app store - out of the box. This is a configurable setting, however, and can be changed in the settings screen you seem to have already uncovered. If you set the "Allow applications downloaded from" option to "Anywhere", your Mac should run applications downloaded from the internet as well.
Do be aware of the security implications of this, and consider changing it only when necessary (and reverting the setting after you've installed the downloaded application which you trust).
For more information, and screen shots, see: http://www.maclife.com/article/howtos/how_tweak_settings_gatekeeper_mountain_lion
You have a few options:
or
Best Answer
Create and add a Gatekeeper label to the app. (‘Approved’ is an arbitrary string.)
Approve all apps with the label.
This only needs to be done once and adding the same named label to apps in the future automatically enables their access.
Open the app as usual.
For more information about spctl (SecAssessment system policy security), see the man page.