Free Online Course: The Unix Workbench provided by Coursera is a comprehensive online course, which lasts for 4 weeks long, 19 hours worth of material. The course is taught in English and is free of charge. Upon completion of the course, you can receive an e-certificate from Coursera. The Unix Workbench is taught by Sean Kross, Jeff Leek, PhD, Brian Caffo, PhD and Roger D. Peng, PhD.
Free Online Course: Configuring Linux Web Servers provided by Udacity is a comprehensive online course, which lasts for 1 week long. The course is taught in English and is free of charge. Configuring Linux Web Servers is taught by Michael Wales.
Free Online Course: Introduction to Linux provided by edX is a comprehensive online course, which lasts for 14 weeks long, 5-7 hours a week. The course is taught in English and is free of charge. Upon completion of the course, you can receive an e-certificate from edX. Introduction to Linux is taught by Jerry Cooperstein PhD.
Free Online Course: Linux Command Line Basics provided by Udacity is a comprehensive online course, which lasts for 1 week long. The course is taught in English and is free of charge. Linux Command Line Basics is taught by Karl Krueger.
Free Online Course: Fundamentals of Red Hat Enterprise Linux provided by edX is a comprehensive online course, which lasts for 8 weeks long, 1-3 hours a week. The course is taught in English and is free of charge. Upon completion of the course, you can receive an e-certificate from edX. Fundamentals of Red Hat Enterprise Linux is taught by Ricardo da Costa.