5 posts.
Twenty commands that cover the overwhelming majority of day-to-day Linux work — navigation, file management, inspection, search, and processes — with runnable examples for each.
Read every rwx string at a glance, change permissions with chmod (symbolic and numeric), change ownership with chown, and understand when to use sudo. With runnable examples.
A practical tour of the Linux file system hierarchy — what /etc, /var, /home, /usr, and friends are actually for, and how paths, mounts, and hidden files work.
Open a terminal, read the prompt, and learn the handful of conventions that make every command-line tool consistent. The foundation for everything else you will do on Linux.
An honest, jargon-free introduction to Linux — what it actually is, how it differs from Windows and macOS, the role of distributions, and why developers gravitate toward it.