Command Line Kung Fu: Bash Scripting Tricks, Linux Shell Programming ...
Jason Cannon
Linux Firewalls
Michael Rash
The Hardware Hacking Handbook
Jasper van Woudenberg & Colin O'Flynn
Bash Idioms: Write Powerful, Flexible, Readable Shell Scripts
Carl Albing & J P Vossen
Building Secure and Reliable Systems
Heather Adkins & Betsy Beyer & Paul Blankinship & Piotr Lewandowski & Ana Oprea & Adam Stubblefield
Kubernetes: Up and Running
Brendan Burns & Joe Beda & Kelsey Hightower & Lachlan Evenson
NGINX Cookbook
Derek Dejonghe
Kubernetes Patterns
Bilgin Ibryam & Roland Huß
Asterisk: The Definitive Guide
Jim Van Meggelen & Russell Bryant & Leif Madsen
Linux Networking Cookbook
Carla Schroder