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Linux Basics for SRE, DevOps & Cloud
The filesystem, text pipelines, permissions, processes, services & networking — from zero
Beginner 11 lessons ~2.1 hr video article lab challenge quiz
About this course
Every server, every container, every CI runner, every Kubernetes node — Linux. This is the ground floor of the entire SRE, DevOps and cloud career, taught the way you'll actually use it: navigate anywhere, read any log, control any service, and reason about any process or connection. Practice inline: the in-page shell responds to every command in this course, and the full VM is one click away. Free to enroll · about 2–2.5 hours · two labs, a graded code challenge, a 10-question quiz, and a certificate.
Course content
4 modules · 11 lessons1. Foundations
- Meet the system
- The filesystem map: where everything lives
- Lab: navigation drills
2. Files, text & permissions
- Text pipelines: grep, pipes, sed & awk
- Permissions & ownership demystified
- Lab: log detective
3. System & network
- Processes & services: ps, top, systemd
- Networking essentials: ip, ss, ping, curl, dig
4. Assess yourself
- Code: users from /etc/passwd
- Quiz: Linux basics
- The troubleshooting playbook: what changed?