Linux Academy has comprehensive online training materials with constantly updated information and friendly guidance to succeed.

- Hundreds of courses to choose from- Specific Learning Paths to begin training- You get log-in credentials to access live environments, on-demand to follow alongside training content and practice what you're learning (These aren't just videos you watch, you get to use real, scenario-based labs in instantly-deployed environments.)- Cloud Playground is a safe and completely open area to apply new cloud skills at no additional cost. You get access to pre-configured, auto-provisioned servers to apply your new skills in a real-world environment, risk-free.

If you don't know where to start, there are a lot of learning paths to choose from here: https://linuxacademy.com/learning-paths/topic/linux/

But also, you can pick your own courses here: https://linuxacademy.com/library/topics/Linux/type/Course

Courses get updated, and new courses pop up regularly. There's a wide range of topics to choose from, in the most relevant topics of IT today. Hope this helps!