Albing - Bash Cookbook [unix shell programming] (O'Reilly, 2007)
Albing - Java Application Development on Linux (Prentice, 2005)
Barkakati - Linux All-In-One Desk Reference For Dummies 2e (Wiley, 2006)
Blum - Linux Command Line and Shell Scripting Bible (Wiley, 2008)
Burtch - Linux Shell Scripting with Bash (Sams, 2004)
Dandamudi - Guide To Assembly Language Programming In Linux (Springer, 2005)
Davis - Definitive Guide to Linux Network Programming (Apress, 2004)
Farrokhi - Network Administration with FreeBSD (Packt, 2008)
Fox - Red Hat Enterprise Linux 5 Administration Unleashed (Sams, 2007)
Fusco - The Linux Programmer's Toolbox (Prentice, 2007)
Ganssle - Art of Designing Embedded Systems 2e (Newnes, 2008)
Gorman - The Linux Process Manager - The Internals of Scheduling, Interrupts and Signals (Wiley, 2003)
Hacking Exposed - Linux 3e (McGraw, 2008)
Hagen - The Definitive Guide to GCC 2e (Apress, 2006)
Hagen - Ubuntu Linux Bible (Wiley, 2007)
Hatch - Hacking Exposed - Linux (McGraw, 2001)
Herbert - Linux TCP-IP Stack - Networking for Embedded Systems (Charles River, 2004)
Joy - Introducing UNIX and Linux (Palgrave, 2002)
Kong - Designing BSD Rootkits - Introduction to Kernel Hacking (No Starch, 2007)
Krafft - The Debian System - Concepts and Techniques (No Starch, 2005)
Krause - Foundations of GTK Development (Apress, 2007)
LeBlanc - Linux For Dummies 7e (Wiley, 2006)
Lehey - The Complete FreeBSD 4e (O'Reilly, 2003)
Levine - Linkers and Loaders [compilers, ELF] (Morgan, 2000)
Loki,Hall - Programming Linux Games [SDL] (No Starch, 2001)
Love - Beginning Unix (Wrox, 2005)
Love - Linux System Programming (O'Reilly, 2007)
Lucas - Absolute FreeBSD - The Complete Guide to FreeBSD 2e (No Starch, 2007)
Matthew - Beginning Linux Programming 4e (Wrox, 2007)
McKusick - Design and Implementation of the 4.4 BSD Operating System - Part 1 [UNIX] (AW, 1996)