Unix Power Tools
Shelley Powers
AD&D 5th Edition - Explorer's Guide to Wildemount
Wizards of the Coast
FIST ULTRA EDITION form fillable character sheet v1.1
Claymore
grep Pocket Reference
John Bambenek & Agnieszka Klus
Linux Basics for Hackers
OccupyTheWeb
Linux Pocket Guide
Daniel J. Barrett
Effective Awk Programming
Arnold Robbins
Linux Device Drivers
Jonathan Corbet & Alessandro Rubini & Greg Kroah-Hartman
Classic Shell Scripting
Arnold Robbins & Nelson H. F. Beebe
Linux in a Nutshell
Ellen Siever & Stephen Figgins & Robert Love & Arnold Robbins
Linux System Programming
Robert Love
Bash Cookbook
Carl Albing & JP Vossen
The Linux Command Line, 2nd Edition
William Shotts
Cybersecurity Ops with bash
Paul Troncone & Carl Albing Ph.D.