Welcome to unix-advanced-lessons
But you should review and try to understand all posts under UNIX Coding Specialist. For any posts you want further explanations on, just leave me a comment. Pay particular attention to the references, which contain further links and information.
Lastly here is an awesome Linux System Admin Guide.
For the rest of the unix scripting lessons – go here
If you have found my website useful, please consider buying me a coffee below 😉