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OfB.biz: Basic Lesson 2: A Home of Your Own

Dec 23, 2003, 08:30 (0 Talkback[s])
(Other stories by Ed Hurst)

"Basic Lesson 1 explained files and permissions. On modern Open Source computer systems, which are based on the design of older commercial Unix systems, you can create files that you own, and only root can read them without your permission. Here in Lesson 2, we answer the question: Where will your files be?

"Note: the terms folder and directory mean the same thing. That's because 'files' on a computer's hard drive are just a collections of electro-magnetic charges held in a pattern. Their actual location is of little interest to most of us. What we need to know is where they are 'located' logically. The system at its lowest level gives associations to these collection of electro-magnetic charges so that the system can allow you to 'see' the file in a 'location' within a folder or directory. If you 'move' a file, all you've actually done is given the file a different association.

"Most PCs you buy come with an operating system. We refer to that as the system 'bundled' with the PC. Bundled PC operating systems allow any user to create or move files just about anywhere they please. The permissions of the various folders and directories are wide open. If you feel like keeping your pictures in the Systems Folder, there's little to stop you, in spite of it being a very bad idea. Mucking around in your Systems Folder can destroy your operating system..."

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Related Story:
OfB.biz: Basic Lesson 1: Identities and Permissions(Dec 10, 2003)