Linux File Permissions are one of the most important security features of the Linux operating system. They determine who can read, write, and execute files and directories. Understanding permissions is essential for Linux administrators, DevOps engineers, cloud professionals, and anyone responsible for managing Linux systems securely.
In this lesson, students will learn how Linux permissions work, how ownership is assigned to files and directories, and how to use commands such as chmod, chown, and chgrp to control access. Learners will also explore symbolic and numeric permission modes, special permissions, and security best practices used in enterprise Linux environments.
By the end of this lesson, students will be able to confidently manage file access and secure Linux systems against unauthorized changes.