Hacking Linux
Phil J Hack
Building Secure and Reliable Systems
Heather Adkins & Betsy Beyer & Paul Blankinship & Piotr Lewandowski & Ana Oprea & Adam Stubblefield
Linux Command Line and Shell Scripting Techniques
Vedran Dakic & Jasmin Redzepagic
Ethical Hacking
Elijah Lewis
tmux (for Diego Cohen)
Brian P. Hogan