Внутреннее устройство Linux, 2 изд.
Кетов Дмитрий Владимирович
Bash Guide for Beginners: Everything You Need to Know about ...
Enriqueta Paneczko
Mastering OpenLDAP
Matt Butcher
Nmap Network Scanning
Gordon Lyon
Bash Idioms: Write Powerful, Flexible, Readable Shell Scripts
Carl Albing & J P Vossen