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Ubuntu Linux Toolbox: 1000+ Commands for Power Users: Edition 2

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Ubuntu Hacks: Tips & Tools for Exploring, Using, and Tuning Linux

Linux Basics for Hackers: Getting Started with Networking, Scripting, and Security in Kali

Easy Linux Device Driver, Second Edition: First Step Towards Device Driver Programming

A Practical Guide to Ubuntu Linux: PRACT GDE UBUNTU LINUX _p3, Edition 3

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XDA Developers' Android Hacker's Toolkit: The Complete Guide to Rooting, ROMs and Theming

The Design and Implementation of the FreeBSD Operating System: Edition 2

Beginning Linux Programming

Linux Kernel Development: Edition 3

How Linux Works, 3rd Edition: What Every Superuser Should Know

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Linux in a Nutshell: A Desktop Quick Reference, Edition 6

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The Practice of System and Network Administration: DevOps and other Best Practices for Enterprise IT, Volume 1, Volume 1, Edition 3

The Linux Programming Interface: A Linux and UNIX System Programming Handbook