LFS101: Introduction to Linux

6th edition. The Linux Foundation online resource, full course (18 chapters). — 404 p.The Linux Foundation.
Linux Philosophy and Concepts.
Linux Basics and System Startup.
Graphical Interface.
System Configuration from the Graphical Interface.
Common Applications.
Command Line Operations.
Finding Linux Documentation.
Processes.
File Operations.
Text Editors.
User Environment.
Manipulating Text.
Network Operations.
The Bash Shell and Basic Scripting.
More on Bash Shell Scripting.
Printing.
Local Security Principles.