- grep -r WORD .
- Recursive search for &quo;WORD&quo; from current directory down.
- find FILENAME .
- Recursive search for &quo;FILENAME&quo; from current directory down.
- sudo COMMAND
- Run &quo;COMMAND&quo; as super user.
- ⌘
- On a non Apple Keyboard the command Key is the same as the Windows key. Also is the ALT key
- Command+Shift+4
- Takes a screenshot of portion of the screen.