While operating services at my current workplace, I frequently use Linux (Red Hat), and this course has been tremendously helpful. I was able to properly understand and apply commands that I only knew superficially before, and experiencing firsthand that the commands covered in the lectures are frequently used in actual work made me feel even more grateful that I took this course. The instructor's diction and expressiveness were excellent, and everything was very easy to understand. Thank you. Course notes link: https://github.com/stbhg5/Linux-Introduction-Realization-for-Non-Majors-to-Understand