How and what resources did you use to learn Linux operating system?

To learn the Linux operating system, I used several approaches and resources:

• Practice in the terminal: regularly executing commands, working with the file system, managing processes, editing files with vim or nano.
• Online courses and tutorials: for example, courses on Coursera, Udemy, as well as free resources like "Linux Journey" or "The Linux Command Line".
• Official documentation and man pages: studying built-in command help via man and reading documentation.
• Books: for example, "Linux Pocket Guide" or "How Linux Works".
• Working with distributions: installing and configuring Ubuntu, CentOS to understand system processes and management.

This comprehensive approach helped me acquire both theoretical knowledge and practical skills in working with Linux.