Effective Awk Programming
Arnold Robbins
Metasploit: The Penetration Tester's Guide
David Kennedy, Jim O'Gorman, Devon Kearns, Mati Aharoni
But how Do it Know?
J. Clark Scott
Hacking: The Art of Exploitation
Jon Erickson
Bash Cookbook
Carl Albing & JP Vossen
Linux Pocket Guide
Daniel J. Barrett
Learning CoreDNS
John Belamaric & Cricket Liu
Linux Device Drivers
Jonathan Corbet & Alessandro Rubini & Greg Kroah-Hartman
Network Programmability and Automation
Jason Edelman & Scott S. Lowe & Matt Oswalt
Linux System Programming
Robert Love
Learning the bash Shell
Cameron Newham
Unix Power Tools
Shelley Powers
Classic Shell Scripting
Arnold Robbins & Nelson H. F. Beebe
Cybersecurity Ops with bash
Paul Troncone & Carl Albing Ph.D.