Real 5

Hello can some one please explain me what do i have to do in the part with the 775 because i don't really understand the objective….

"You must see where the BillSmith’s folder is and change his permission to \“Read All\” but in numbers like 775. "

What does this mean?

Thank you.

Google Chmod.

then the permision should be 777 (7 = rwx = read write execute (full access)

but 777 don't work. why isn't that correct?

EDITl: Nm. i got it