I am a beginner here at unix administration. When we create a Unix user, we get a home directory for the user. Inside the home directory i.e
~/ for all the files and directories that we create, what is the use of setting the file permissions? As what I understand is the owner will always be the user and the home directory purpose is to isolate the files and directories for that user.
So, when no other user except the root can log in to the user's home directory, what is the user to give the group permissions for the files inside the home directory for the user. Am I missing something here?