Hope its usefull to all Mac Users !
Command + A Select All
Command + B Hide Toolbar
Command + C Copy
Command + D Open the Desktop folder
Command + E Eject
Command + F Find
Command + H Hide the current application
Command + I Get Info on the selected items
Command + J Open the View Option dialog box
Command + K Open the Connect to Server dialog box
Command + L Make alias(es) for the selected item(s)
Command + M Minimize the active window to the Dock
Command + N Open a new Finder window
Command + O Open
Command + P Print
Command + R Show Original of the selected alias
Command + S Save Start in Single-User mode (when pressed during startup)
Command + T Add to Favorites
Command + V Paste
Command + W Close the active window
Command + X Cut
Command + Z Undo
