Below are a list of links that can be very helpful in your understanding of Linux.

1. http://www.linuxfoundation.org/news-media/announcements/2014/03/linux-foundation-build-massive-open-online-course-program-edx Massive Open Online Course (MOOC)
2. http://osuosl.org/students/cs312 Linux System Administration Course
3. https://leisureguy.wordpress.com/2008/05/13/learning-linux-through-opencourseware/ Learning Linux through Open Courseware
4. https://www.youtube.com/watch?v=_gCwCOhMcog Linux Tutorial
5. https://www.youtube.com/watch?v=LRhwL9rsu9s&src_vid=GNu5YMEhIdg&feature=iv&annotation_id=annotation_910169 Basics of Linux (short)
6. https://www.youtube.com/watch?v=fHDak219puI Install Linus in VMWare
7. http://www.rajalakshmi.org/Dept/IT/CS2257-LM.pdf Operating System Lab Manuel