It turns out that I just installed macchanger or I think so, but I can not do anything since I get this error:
ERROR: Use macchanger as root: sudo macchanger [option] [device]
And if I execute the command sudo macchanger --option it returns me:
Usage: sudo macchanger [option] [device]
Then he gives me a list with Options ...
Does anyone know what it is about and how to fix it?