MAC COMMON KEYBOARD SHORTCUTS

The shortcuts are useful to know. But the Mac common keyboard shortcuts are different to Windows.By pressing certain key combinations, you can do things that normally need a mouse, trackpad, or other input device. To use a keyboard shortcut, press and hold one or more modifier keys and then press the last key of the shortcut.
Mac menus and keyboards often use symbols for certain keys, including modifier keys:

                              Command (or Cmd) ⌘         Option (or Alt) ⌥

                                 Shift ⇧                                      Control (or Ctrl) ⌃

                                 Caps Lock ⇪                           Fn

On keyboards made for Windows PCs, use the Alt key instead of Option, and the Windows logo key instead of Command.

Cut, copy, paste, and other Mac common keyboard shortcuts

• Command-X: Cut the selected item and copy it to the Clipboard.
• Command-C: Copy the selected item to the Clipboard. This also works
  for files in the Finder.
• Command => V: Paste the contents of the Clipboard into the current
  document or app. This also works for files in the Finder.
• Command => Z: Undo the previous command. You can then press    Shift => Command => Z to Redo, reversing the undo command. In some apps, you can undo and redo multiple commands.
• Command => A: Select All items.
• Command => F: Find items in a document or open a Find window.
• Command => G: Find Again: Find the next occurrence of the item previously found. To find the previous occurrence, press Shift =>
  Command => G.
• Command => H: Hide the windows of the front app. To view the front app but hide all other apps, press Option => Command => H.
• Command => M: Minimize the front window to the Dock. To minimize all
  windows of the front app, press Option => Command-M.
• Command => O: Open the selected item, or open a dialog to select a file
  to open.
• Command => P: Print the current document.
• Command => S: Save the current document.
• Command => T: Open a new tab.
  Command => W: Close the front window. To close all windows of the app, press Option => Command => W.
• Option => Command => Esc: Force quit an app.
• Command => Space bar: Show or hide the Spotlight search field.
• Control => Command => Space bar: Show the Character Viewer, from which you can choose emoji and other symbols.
• Command => Tab: Switch to the next most recently used app among your open apps.
• Shift => Command => N: Create a new folder in the Finder.
• Shift => Command => 5: In macOS Mojave or later, take a screenshot or make a screen recording. Or use Shift => Command => 3 or Shift-
  Command => 4 for screenshots.