Mac OS change command to control key

is there any way to change the use of command key to control, somewhat globally in the system? for example instead of cmd+S, to use ctrl+S, but everywhere in the system

3 Answers

You can switch the modifier key associations in System Preferences » Keyboard » Keyboard » Modifier Keys…:

KeyRemap4MacBook can be used for more tweaks like this. Also see TextMate Blog » Key bindings for switchers for changing the behavior of page up, page down, home and end.

Karabiner A powerful and stable keyboard customizer for macOS.