Социальная инженерия и этичный хакинг на практике
Джо Грей
Designing and Implementing Linux Firewalls with QoS Using Netfilter, ...
Lucian Gheorghe
Bash Idioms: Write Powerful, Flexible, Readable Shell Scripts
Carl Albing & J P Vossen
Linux Command Line and Shell Scripting Techniques
Vedran Dakic & Jasmin Redzepagic
sed & awk
Dale Dougherty & Arnold Robbins
Linux iptables Pocket Reference
Gregor N. Purdy
Effective DevOps
Jennifer Davis & Ryn Daniels