Linux in a Nutshell
Arnold Robbins & Ellen Siever & Stephen Figgins & Robert Love
FIST ULTRA EDITION form fillable character sheet v1.1
Claymore
The Hardware Hacker
Andrew Bunnie Huang
Penetration Testing: A Hands-On Introduction to Hacking
Gorgia Weidman
Cybersecurity Ops with bash
Paul Troncone & Carl Albing Ph.D.
Classic Shell Scripting
Arnold Robbins & Nelson H. F. Beebe
Effective Awk Programming
Arnold Robbins
Unix Power Tools
Shelley Powers
Learning the bash Shell
Cameron Newham
Linux System Programming
Robert Love
Network Programmability and Automation
Jason Edelman & Scott S. Lowe & Matt Oswalt
Linux Device Drivers
Jonathan Corbet & Alessandro Rubini & Greg Kroah-Hartman
Learning CoreDNS
John Belamaric & Cricket Liu
Linux Pocket Guide
Daniel J. Barrett
Bash Cookbook
Carl Albing & JP Vossen