Using a Linux bash script, write a function named "cube" that cubes numbers. The function can handle any number of arguments. If the user tries to run the function without sufficient positional parameters, show a "Usage" error message.
Example:
$ cube 1 2 3 4 5 6 50
1 cubed: 1
2 cubed: 8
3 cubed: 27
4 cubed: 64
5 cubed: 125
6 cubed: 216
50 cubed: 125000