Getting Started

What is Linux? Get started with
choosing a distribution and
installation.

Command Line

Learn the fundamentals of the
command line, navigating files,
directories and more.

Text-Fu

Learn basic text manipulation and
navigation

Advanced Text-Fu

Navigate text like a Linux spider
monkey with vim and emacs.

User Management

Learn about user roles and
management.

Permissions

Learn about permission level and
modifying permissions.

Processes

Learn about the running processes
on the system.

Packages

Learn all about the dpkg, apt-get,
rpm and yum package management
tools.

Devices

Learn about Linux devices and how
they interact with the kernel and
user space.

The Filesystem

Learn about the Linux filesystem,
the different types of filesystems,
partitioning and more.

Boot the System

Learn about the stages of the Linux
boot process.

Kernel

The most important part of the Linux
system, learn about how it works
and how to configure it.

Init

Learn about the different init
systems, SysV, Upstart and
systemd.

Process Utilization

Learn resource monitoring with top,
load averages, iostat and more!

Logging

Learn about system logs and the
/var/log directory.

Network Sharing

Learn about network sharing with rsync, scp, nfs and more.

Network Basics

Learn about networking basics and the TCP/IP model.

Subnetting

Learn about subnets and how to do subnet arithmetic!

Routing

Learn how packets are routed across networks!

Network Config

Learn about network configuration using Linux tools!

Troubleshooting

Learn about common networking
to help you diagnose and
troubleshoot issues!

DNS

Everything and more that you
wanted to know about DNS.

How Linux Works: What Every Superuser Should Know

One of my most highly
recommended books!

UNIX and Linux System Administration Handbook, 4th
Edition

Extremely comprehensive book for every SysAdmin.

Linux Command Line and Shell Scripting Bible

Great comprehensive guide to shell scripting.

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

For serious Linux-users, great start into kernel programming.