Advanced Programming in the UNIX Environment (3rd Edition) (Addison-Wesley Professional Computing Series)
Absolute OpenBSD: UNIX for the Practical Paranoid
DNSSEC Mastery: Securing the Domain Name System with BIND
OCA Oracle Solaris 11 System Administration Exam Guide (Exam 1Z0-821) (Oracle Press)
Mastering FreeBSD and OpenBSD Security
Linux System Programming: Talking Directly to the Kernel and C Library
Linux System Programming: Talking Directly to the Kernel and C Library
Absolute OpenBSD: Unix for the Practical Paranoid
Ubuntu for Non-Geeks: A Pain-Free, Get-Things-Done Guide
Network Your Computers & Devices with Windows® 8 Step by Step
RHCSA/RHCE Red Hat Linux Certification Study Guide (Exams EX200 & EX300), 6th Edition (Certification Press)
UNIX and Linux System Administration Handbook (4th Edition)
The Linux Programming Interface: A Linux and UNIX System Programming Handbook
Introduction to the Command Line (Second Edition): The Fat Free Guide to Unix and Linux Commands
Python in a Nutshell, Second Edition (In a Nutshell)
SSH Mastery: OpenSSH, PuTTY, Tunnels and Keys
Learning Unix for OS X Mountain Lion: Going Deep With the Terminal and Shell
Linux in a Nutshell
sed and awk Pocket Reference, 2nd Edition
Unix and Linux System Administration Handbook (4th Edition)
The Practice of System and Network Administration, Second Edition
RHCSA/RHCE Red Hat Linux Certification Study Guide (Exams EX200 & EX300), 6th Edition (Certification Press)
sed & awk (Nutshell Handbooks)
Linux System Commands
Effective awk Programming (3rd Edition)
Unix Power Tools, Third Edition
Absolute OpenBSD: UNIX for the Practical Paranoid
The Design of the UNIX Operating System [Prentice-Hall Software Series]
The Linux Programming Interface: A Linux and UNIX System Programming Handbook
Unix in a Nutshell, Fourth Edition
UNIX and Linux System Administration Handbook (4th Edition)
The Linux Programming Interface: A Linux and UNIX System Programming Handbook
The Practice of System and Network Administration, Second Edition
Advanced Programming in the UNIX Environment (3rd Edition) (Addison-Wesley Professional Computing Series)
Python in a Nutshell, Second Edition (In a Nutshell)
RHCSA/RHCE Red Hat Linux Certification Study Guide (Exams EX200 & EX300), 6th Edition (Certification Press)
Classic Shell Scripting
Learning the bash Shell: Unix Shell Programming (In a Nutshell (O'Reilly))
Learning the vi and Vim Editors
Unix Network Programming, Volume 1: The Sockets Networking API (3rd Edition)