Unix Power Tools: Edition 3

Linux Basics for Hackers: Getting Started with Networking, Scripting, and Security in Kali

Penetration Testing with Raspberry Pi

Learning the bash Shell: Unix Shell Programming, Edition 3

Unix in a Nutshell: A Desktop Quick Reference - Covers GNU/Linux, Mac OS X,and Solaris, Edition 4

The Design and Implementation of the FreeBSD Operating System: Edition 2

Linux Kernel Development: Edition 3

How Linux Works, 3rd Edition: What Every Superuser Should Know

Unix in easy steps: Commanding the BASH shell

vi Editor Pocket Reference

Easy Linux Device Driver, Second Edition: First Step Towards Device Driver Programming

Linux in a Nutshell: A Desktop Quick Reference, Edition 6

The Practice of System and Network Administration: DevOps and other Best Practices for Enterprise IT, Volume 1, Volume 1, Edition 3

The Linux Programming Interface: A Linux and UNIX System Programming Handbook

DevOps Troubleshooting: Linux Server Best Practices

Advanced Programming in the UNIX Environment: Edition 3

Learning the vi and Vim Editors: Power and Agility Beyond Just Text Editing, Edition 8

CentOS High Availability