Bonus: Linux Filesystem Deep Dive – Guide, Checklist & CLI Challenges

1. Filesystem: The Map Every Engineer Needs

This bonus episode dives into the Linux filesystem—how files, logs, configs, and user data are really organized on your server.

• Explore /etc, /var, /home, /usr, /tmp and more

• Find logs, config files, and where apps install stuff

• Use commands like ls, find, du, tail, and chmod for real-world tasks

• Why knowing the filesystem prevents accidental deletes, security mistakes, and lost logs

I show common mistakes (like deleting the wrong directory) and demo how to recover—or avoid disaster in the first place.

2. All Labs & Checklists—Direct to Your Inbox

Get the printable filesystem checklist, command cheat sheet, and practical challenge list—no paywall, no spam, just actionable content.

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3. Filesystem Lab Checklist

• List files and directories in /, /etc, /var, and your home

• Find all .conf files in /etc

• Check disk usage with du -sh *

• View logs with tail /var/log/syslog (or /messages)

• Create, move, and change permissions on test files

Try the bonus challenge: Find the biggest directory in your home, and see what’s eating your space!

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5. What I Learned

Most server “mysteries” are just a filesystem puzzle.
When in doubt, start with ls, find, or du—and read the logs!

6. What Should I Dive Into Next?

What Linux or DevOps “mystery” do you want solved in the next bonus episode?
Reply or comment with your story!

🎥 Watch the Bonus Filesystem episode here

See you in the next lab!