This article shows how to Force Quit the front-most Mac application immediately with a single keyboard shortcut. This little-known keyboard shortcut is the easiest, fastest and best way to force a Mac application to quit. Yes – it works on Lion.

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30 keyboard shortcuts Mac users need to know This collection of keyboard shortcuts for macOS can help users get the most from their iMacs, MacBook Pro and MacBook laptops. That’s the Command key, and it’s the key to all the shortcuts listed here. It works kind of like the Control key on a Windows PC, except it’s in a handier spot—typically on both sides of.

This shortcut works for Mac OS X 10.6 Snow Leopard and Mac OS X 10.5 Leopard. The shortcut also works for Mac OS X 10.7 Lion – I’ve tested it! This key combination does not work for Mac OSX 10.4 and earlier, which probably explains why it’s not well known.

What is Force Quit?

The normal ways to quit a Mac application are to choose Quit from the menu named for the application (e.g. Word, Chrome, VLC, Mail) or to press the keyboard shortcut to Quit, which is Command-Q. Force Quit is a Mac feature to force a Mac program to exit when it won’t respond to these normal ways to quit.

Why is Force Quit Useful?

Force quitting a hung application is useful to restart the app in order to be able to use it again. For example, if Mac Mail locks up while retrieving mail, you can terminate it, and start it again.

Force quit is even more useful when a frozen app stops access to the Finder and other applications, so that you can’t use your Mac. In the situation, that Mac seems frozen. Force quitting the hung app can be necessary to be able to use your Mac again.

An unresponsive app can prevent access to the Apple manu, so that knowing the keyboard shortcut to force quit an app is sometimes the only way to be regain control of your Mac.

Warnings for Force Quit

If you force quit an application, you will probably lose any changes you’ve made in that app that you haven’t saved. (With Microsoft Office, you might get an autosave.) Try quitting with the Command-Q key combination first.

What is the Key Combination to Force Quit a Mac App?

This keyboard shortcut will kill the front-most Mac app, which is usually the app you want to stop. If you want to stop an application which is not at the front, see Force Any Mac App to Quit using Only Keyboard Shortcuts.

The keyboard shortcut to force quit the front-most Mac app is to press and hold Command-Option-Shift-Escape until the app exits. There is around a three second delay until the Mac kills the app, to prevent this feature being applied accidentally.

How to Use the Force Quit Keyboard Shortcut, Step by Step

If you’re unused to complex key combinations, here’s how to do it in steps:

1. Hold down the Command key.
2. Add holding the Option key with another finger on the same hand.
3. Add holding the Shift key with another finger on the same hand.
4. With these keys held down with one hand, use your other hand hold the Escape (Esc) key until the foreground app exits. This should take about three seconds.
5. Release all the keys.

Information sourced from http://support.apple.com/kb/ht3411.

Questions, comments or feedback? Please leave a comment below.

PyCharm has keyboard shortcuts for most of its commands related to editing, navigation, refactoring, debugging, and other tasks. Memorizing these hotkeys can help you stay more productive by keeping your hands on the keyboard.

If your keyboard does not have an English layout, PyCharm may not detect all of the shortcuts correctly.

The following table lists some of the most useful shortcuts to learn:

If you are using one of the predefined keymaps for your OS, you can print the default keymap reference card and keep it on your desk to consult it if necessary. This cheat sheet is also available under Help | Keymap Reference.

Choose the right keymap

To view the keymap configuration, open the Settings/Preferences dialog Ctrl+Alt+S and select Keymap.

Enable function keys and check for possible conflicts with global OS shortcuts.

• Use a predefined keymap

  PyCharm automatically suggests a predefined keymap based on your environment. Make sure that it matches the OS you are using or select the one that matches shortcuts from another IDE or editor you are used to (for example, Emacs).

• Tune your keymap

  You can modify a copy of any predefined keymap to assign your own shortcuts for commands that you use frequently.

• Import custom keymap

  If you have a customized keymap that you are used to, you can transfer it to your installation.

Besides the default set of keymaps, you can add more as plugins (such as, keymaps for GNOME and KDE): open the Settings/Preferences dialog Ctrl+Alt+S, select Plugins and search for keymap in the Marketplace.

If your keymap stopped working after an update, it is likely that the keymap is not available by default in the new version of PyCharm. Find this keymap as a plugin and install it on the Plugins page as described inManage plugins.

Print your keymap

If you prefer a hard copy, download the default PyCharm keymap reference and print it out as a card:

Learn shortcuts as you work

PyCharm provides several possibilities to learn shortcuts:

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• Find Action is the most important command that enables you to search for commands and settings across all menus and tools.

  Press Ctrl+Shift+A and start typing to get a list of suggested actions. Then select the necessary action and press Enter to execute it.

• Key Promoter X is a plugin that shows a popup notification with the corresponding keyboard shortcut whenever a command is executed using the mouse. It also suggests creating a shortcut for commands that are executed frequently.

• If you are using one of the predefined keymaps for your OS, you can print the default keymap reference card and keep it on your desk to consult it if necessary. This cheat sheet is also available under Help | Keymap Reference.

• To print a non-default or customized keymap, use the Keymap exporter plugin.

If an action has a keyboard shortcut associated with it, the shortcut is displayed near the name of the action. To add a shortcut for an action that you use frequently (or if you want to change an existing shortcut), select it and press Alt+Enter.

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Use advanced features

List Of Mac Keyboard Commands

You can further improve your productivity with the following useful features:

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• Quick Lists

  If there is a group of actions that you often use, create a quick list to access them using a custom shortcut. For example, you can try using the following predefined quick lists:

  • Refactor thisCtrl+Alt+Shift+T

  • VCS OperationsAlt+`

• PyCharm provides a lot of typing assistance features, such as automatically adding paired tags and quotes, and detecting CamelHump words.

• Speed search

  When the focus is on a tool window with a tree, list, or table, start typing to see matching items.

• Press twice

  Many actions in PyCharm provide more results when you execute them multiple times. For example, when you invoke basic code completion with Ctrl+Space on a part of a field, parameter, or variable declaration, it suggests names depending on the item type within the current scope. If you invoke it again, it will include classes available through module dependencies. When invoked for the third time in a row, the list of suggestions will include the whole project.

• Resize tool windows

  You can adjust the size of tool windows without a mouse:

  • To resize a vertical tool window, use Ctrl+Shift+Left and Ctrl+Shift+Right

  • To resize a horizontal tool window, use Ctrl+Shift+Up and Ctrl+Shift+Down