October 2000
Intermediate to advanced
1152 pages
26h 41m
English
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File and Directory Permissions
As I stated in the introduction to this chapter, file and directory permissions are the basics for providing security on a system. These, along with the authentication system, provide the basis for all security. Unfortunately, many people do not know what permissions on directories mean, or they assume that permissions mean the same thing they do on files. The following section describes the permissions on files; after that, the permissions on directories are described.
Files
The permissions for files are split into three sections: the owner of the file, the group associated with the file, and everyone else (the world). Each section has its own set of file permissions, which provide the ability to read, write, and ...
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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.