Bash Idioms: Write Powerful, Flexible, Readable Shell Scripts
Carl Albing & J P Vossen
Linux Advanced Routing and Traffic Control HOWTO
Gregory Maxwell & Remco Mook & Martijn Oosterhout & Paul Schroeder & Jasper Spaans & Bert Hubert
Nmap Network Scanning
Gordon Lyon
Безопасно by design
Берг Джонсон Дэн & Деоган Дэниел & Савано Дэниел
tmux (for Diego Cohen)
Brian P. Hogan