See Technical Q&A QA1134: Programmatically causing restart, shutdown and/or logout.Īccording to man shutdown, shutdown -h now and shutdown -r now send processes a TERM signal followed by a KILL signal.Īccording to the Daemons and Services Programming Guide, when you tell loginwindow to log out, processes that support sudden termination are sent a KILL signal, and processes that don't support sudden termination are terminated in different ways: Cocoa applications receive the applicationShouldTerminate: delegate method, foreground applications receive the kAEQuitApplication Apple event, background applications receive the kAEQuitApplication Apple event followed by a KILL signal, and daemons receive a TERM signal followed by a KILL signal after a few seconds. I tried to launch Visual Studio and the icon bounces but the application does not open.
Force shutdown app mac mac#
NOTE: The command key commandicon is also the Apple key and the option key is also the alt key. I am unable shutdown, restart or logout of Mac OS. 1 Or choose Force Quit from the Apple menu in the corner of your screen. Force an app to quit Press these three keys together: Option (or Alt), Command, Esc (Escape). If the app doesn't quit, follow these steps to force the app to quit. loginwindow is sent the same Apple events as above when you log out, restart, shut down, or put the the Mac to sleep normally. Command+Control+Eject key to force the computer to restart. To quit a Mac app normally, choose Quit from the app's menu in the menu bar, or press Command-Q. The four letter codes for the Apple events are listed in AERegistry.h.Īll System Events commands above send Apple events to the loginwindow process. Put displays to sleep (10.9 and later): pmset displaysleepnow If it's just an application that's frozen rather than the operating system, hold down the Option () key then right-click the offending app's icon in the Dock and select Force Quit. Go to sleep (AppleScript): osascript -e 'tell app "System Events" to sleep' Log out after showing a confirmation dialog: osascript -e 'tell app "System Events" to log out' Log out without showing a confirmation dialog: osascript -e 'tell app "System Events" to «event aevtrlgo»'
Be aware, force quitting apps at the wrong time can mean losing work or progress. Alternatively, you can use the Task Manager or the Run service to quit apps. Copy and paste the following command: killall Finder Press Enter. Press Alt + F4 simultaneously on your keyboard.
Restart after showing a confirmation dialog: osascript -e 'tell app "loginwindow" to «event aevtrrst»' You can find it in the Applications folder Utilities. Restart without showing a confirmation dialog: osascript -e 'tell app "System Events" to restart' Shut down after showing a confirmation dialog: osascript -e 'tell app "loginwindow" to «event aevtrsdn»' Shut down without showing a confirmation dialog: osascript -e 'tell app "System Events" to shut down'
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