Congratulations, you completed the beginner's guide to Linux shell. I hope you enjoyed it as much as I did preparing this course. Now you should feel more comfortable with the text interface of Linux. You learn how to do file system navigation, file management, combining several commands into pipelines and many more. These instruments are the bulk of Linux shell commands that are used by professionals. I will say that learning Linux shell is a long journey that has begun for you and it might become addictive once you master more commands.

As the next steps, you can learn more keyboard shortcuts. This will make your work significantly faster and more efficient. You will also realize that you don't need your mouse anymore. Also have a look at different file editors check VI, vim, Emacs and more. And also those having graphical interface such as G edit or Kate. They are more complex but also more powerful.

Or maybe you can stay with nano if that's enough for you. This is now your choice. When you start using these commands in your daily work, you will discover your own specific use cases, especially with the piping operations. many examples I explained to the man pages with the corresponding commands, make sure to check StackOverflow many questions have been asked there as well. Or otherwise feel free to post a question to these cores and that will get back to you. I wish you good luck with exploration of Linux shell and have fun