"In our 'Advanced Console Tricks' series we have already covered
subjects like Getting help and Processes management. Now it's time
to understand how the file permissions work. In this article we're
going to cover topics such as the basics of Linux file access
rights, useful commands that allow you to manage file permissions,
as well as numerical and special access modes.
"From its beginnings, UNIX was multi-user environment. This
feature enforced the implementation of some security mechanisms to
secure data and the whole system from unauthorized access..."