In addition to my shell scripting series, I am creating several highly-focused topics relating to Linux. These will be $5-$10 courses that focus on some things like dracut, kdump, cloud-init, etc.
I often find myself needing certain knowledge in focused areas. so instead of a giant course on "Linux," I am making more of an a la carte approach. So look forward to those.
My shell scripting series only has a beginner level course right now, but I have an intermediate one in the works, and plan to do an expert-level, and a legendary-level course.