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Try Ctrl + Y. There is no common universal shortcut for Redo, although you might find the option in some programs, e.g., Adobe Photoshop.
Ctrl + Z
ctrl + a : select all
ctrl + Z Ctrl +Z is undo for everything
Ctrl+C is a keyboard shortcut for 'Copy'. Ctrl+V is the shortcut for 'Paste'. Ctrl+X does 'Cut', and Ctrl+Z does 'Undo'. Alt+Tab switches between windows.
It saves the file.
The Undo is done by pressing Ctrl - Z.
ena
CTRL+Z is simply the shortcut key for the Undo command. To "undo your undo" so to speak, you must use the Redo command. Usually, the shortcut key for this is CTRL+Y.
Ctrl-E Power off. Ctrl-R Reset the power. Ctrl-Z Suspend.
Ctrl Z
That's the shortcut for copy. The shortcut for paste is Ctrl V.