Ward B.How Linux Works.What Every Superuser Should Know 3ed 2021

Textbook in PDF format

Your system shouldn’t be a mystery. You should be able to make your software do what you want it to do without “magic” incantations or rituals. The key to attaining this power lies in understanding the fundamentals of what the software does and how it works, and that’s what this book is all about. You should never have to fight with a computer.
Linux is a great platform for learning because it doesn’t try to hide anything from you. In particular, you can find most system configuration details in easy-to-read plaintext files. The only tricky part is figuring out which parts are responsible for what and how they all fit together.
The Big Picture
Basic Commands and Directory Hierarchy
Devices
Disks and Filesystems
How the Linux Kernel Boots
How User Space Starts
System Configuration: Logging, System Time, Batch Jobs, and Users
A Closer Look at Processes and Resource Utilization
Your Network and Its Configuration
Network Applications and Services
Introduction to Shell Scripts
Network File Transfer and Sharing
User Environments
A Brief Survey of the Linux Desktop and Printing
Development Tools
Introduction to Compiling Software from C Source Code
Virtualization