command line command to list all IOS simulators installed on my mac

Open Terminal and run the below command
xcrun instruments -s devices

expected output:

Known Devices:

LON02759 (com.apple.instruments.devices.local)

iPhone - Simulator - iOS 7.1

iPhone Retina (3.5-inch) - Simulator - iOS 7.1

iPhone Retina (4-inch) - Simulator - iOS 7.1

iPhone Retina (4-inch 64-bit) - Simulator - iOS 7.1

iPad - Simulator - iOS 7.1

iPad Retina - Simulator - iOS 7.1



iPad Retina (64-bit) - Simulator - iOS 7.1