The Linux Programming Interface
Michael Kerrisk
Wicked Cool Shell Scripts
Dave Taylor & Brandon Perry
Learning the bash Shell, 3rd Edition
Cameron Newham
Effective awk Programming
Arnold Robbins
Linux System Programming
Robert Love
Cybersecurity Ops with bash
Paul Troncone and Carl Albing
grep Pocket Reference
John Bambenek and Agnieszka Klus
Learning CoreDNS
John Belamaric and Cricket Liu
Linux Pocket Guide, 3E
Daniel J. Barrett
Linux in a Nutshell
Ellen Siever & Stephen Figgins & Robert Love & and Arnold Robbins
bash Cookbook
Carl Albing and JP Vossen
Classic Shell Scripting
Arnold Robbins and Nelson H. F. Beebe
Linux Device Drivers, 3rd Edition
Jonathan Corbet & Alessandro Rubini & and Greg Kroah-Hartman
UNIX Power Tools, 3rd Edition
Jerry Peek & Shelley Powers & Tim O’Reilly & and Mike Loukides