I am wanting to make restricted user for a friend on my raspberry pi, I know how to add a user, but I never looked at adding restrictions to that user.. I tried googling but it seems its not a common topic.
How would I go about that?
Edit; The restrictions I had in mind were that he can only read certain files and execute certain files he won't be able to enter my directory (cd /home/pi/) and mess with the files. He wouldn't be able to make his own files or remove files (he is kind of new and I don't want him messing with those commands yet and mess something up we all know how scary rm can be.)