Linux file permissions (chmod)

Linux is a multiuser operating system however this raises security issues, in this article we cover users, permissions, and changing permissions.

Table of contents.Introduction.Classes of users.Permissions.Changing file permissions.Changing file permissions(numeric).Changing file and group ownership.Special permissions.Summary.References.Introduction.

Just like the UNIX operating system, linux is a multi-user operating system, that is, it can be accessed and used by multiple users co...