- Finding your way on a Linux System: Command Line Basics; Using the Command Line to Get Help; Using Directories and Listing Files; Creating, Moving and Deleting Files.- Command Line Basics;- Using the Command Line to Get Help;- Using Directories and Listing Files;- Creating, Moving and Deleting Files.- The power of the command line: Archiving Files on the Command Line; Searching and Extracting Data from Files; Turning Commands into a Script.- Archiving Files on the Command Line;- Searching and Extracting Data from Files;- Turning Commands into a Script.- The Linux OS: Choosing an Operating System; Understanding Computer Hardware; Where Data is Stored; Your Computer on the Network.- Choosing an Operating System;- Understanding Computer Hardware;- Where Data is Stored;- Your Computer on the Network.- Security and File Permissions: Basic Security and Identifying User Types; Creating Users and Groups; Managing File Permissions and Ownership; Special Directories and Files.- Basic Security and Identifying User Types;- Creating Users and Groups;- Managing File Permissions and Ownership;- Special Directories and Files.