July 2005
Beginner
720 pages
18h 15m
English
Content preview from SAMS Teach Yourself Red Hat® Fedora™ 4 Linux® All in OneBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Understanding Permissions
Every file and directory in a Linux system is governed by a set of security-related properties. These properties govern the life of the file or directory in two ways:
Each file or directory must be owned by someone: In Linux, there is no such thing as a file or directory without an owner.
Each file or directory is associated with a list of the operations that can be performed on it, both by the owners and at times by other users as well. This list is known as the file's permissions and it is generally represented in a particular visual format that we discuss in a moment.
Both ownership and permissions are assigned from default values when a file or directory is created; file or directory owners can then change this information ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.