EduChoices published an excellent list of Linux tutorials. The list includes tutorials for Linux newbies and experts alike.

Check it out, a must have if you into Linux The list below was taken from EduChoices.

Linux and UNIX Training for Beginners

Free Linux Tutorials for Beginners

  • Introduction to Linux{.external} - This IBM tutorial is designed for people who want to learn what Linux is and how it can be used.
  • Linux Desktop 101{.external} - This 14-week course teaches students how to run the Linux operating system on a PC.
  • Hands-On Introduction to Linux{.external} - Machtelt Garrels' well-organized tutorial provides a hands-on introduction to Linux.
  • Real Time Linux Introduction - A series of introductory Linux tutorials from the National Institute of Standards and Technology.
  • Getting Started with Linux - This 20-lesson course from Linux Online is designed for people who are just getting started with Linux.
  • Linux Fundamentals Course{.external} - The Shuttleworth Foundation’s fundamentals course takes approximately 18 hours to complete and gives students a basic understanding of the Linux operating system.
  • The 35-Command Tutorial{.external} - This basic Linux tutorial from teaches 35 commands that every Linux user should know.
  • Getting Started with Linux Desktop{.external} - Novell’s self-study course teaches basic Linux desktop skills.

Free UNIX Tutorials for Beginners

  • UNIX Tutorial for Beginners{.external} - The University of Surrey’s beginner’s guide to the UNIX operating system features eight easy-to-follow tutorials.
  • A Basic UNIX Tutorial{.external} - This Idaho State University tutorial teaches the fundamental of UNIX computing. The tutorial includes examples and exercises.
  • UNIX Training Manual{.external} - This free 88-page training manual utilizes examples to teach UNIX filesystem commands. Not exactly a tutorial, but useful nevertheless.
  • UNIX Command Tutorial{.external} - University of Mississippi course that teaches students how to interact with a UNIX operating system and perform various commands.
  • Learn UNIX Tutorial - Soft Lookup’s comprehensive UNIX tutorial can take almost anyone from a beginner to an expert.
  • UNIX - The Bare Minimum{.external} - This tutorial, from a UC Davis professor, offers a basic introduction to UNIX.
  • Learning About UNIX{.external} - The University of Toronto offers open access to UNIX and Linux course notes. This course focuses on UNIX and Linux tools.
  • What is UNIX?{.external} - This tutorial offers a simple introduction to UNIX and offers access to a forum for UNIX beginners.

Linux and UNIX Training for Experts

Free Linux Tutorials for Experts

  • Linux Online’s Course for Advanced Users - This advanced course from Linux Online is fashioned into a series of how-to documents. Designed for people who want to learn more about installation, configuration and maintenance tasks.
  • Linux System Administration Course{.external} - This 28-module course provides comprehensive training for system administrators.
  • Kernel Tutorials{.external} - The kernel tutorials at HowToForge are a great way for Linux users to learn everything they need to know about kernels.
  • Advanced Routing and Traffic Control Tutorial{.external} - This advanced Linux tutorial teaches users about routing, filtering and traffic shaping.
  • Linux Enterprise Server Courses{.external} - Novell Training Services offers several different courses for advanced Linux users.
  • Linux Network Administration Course{.external} - The Shuttleworth Foundation’s Linux Network Administration Course is split into separate tutorials that teach the fundamentals of network administration.
  • Advanced Linux Programming{.external} - This tutorial is actually a book that can be downloaded for free. The book teaches users how to develop Linux software and write sophisticated programming.
  • IBM’s Technical Library{.external} - IBM’s Technical Library offers a number of useful tutorials for advanced Linux users.

Free UNIX Tutorials for Experts

  • UNIX for Advanced Users{.external} - Indiana University’s UNIX Workstation Support Group offers a great UNIX course for advanced users.
  • Kevin Heard’s UNIX Tutorial{.external} - Kevin Heard (UC Berkeley) has a fantastic three-part tutorial that starts with an overview of UNIX and ends with advanced topics.
  • Advanced UNIX Commands{.external} - Although this is more of a list than a tutorial, it makes a good reference for advanced UNIX users.
  • Parallel Programming Tutorial{.external} - This UNIX tutorial teaches advanced users the ins and outs of parallel programming.
  • Advanced Bash Scripting Guide{.external} - This UNIX tutorial from the Linux Document Project starts out with a programming overview and moves on to advanced scripting topics.
  • UNIX Shell Scripting Advanced{.external} - VTC has a number of UNIX tutorials that are in video form. This one guides advanced users through their first shell script.
  • Advanced C Shell Programming{.external} - This UC Davis tutorial teaches advanced C shell and tcsh programming techniques.