ced4568andClaude Sonnet 5
15b616274b
Adds all 6 ROOT 01 modules (how computers run software, the shell, filesystem navigation, files & text, processes, users & permissions foundations), each with a real lesson, demonstration/guided exercise, knowledge check where warranted, a hands-on Lab, and a reflection — 35 activities, 29 new content files. Adds 6 new hands-on Linux scenarios (linux-inspect-hardware, linux-shell-basics, linux-filesystem-navigation, linux-files-and-text, linux-process-management, linux-permissions-foundations) plus 2 MCQ scenarios, using the existing generic scenario/ validation engine (docs/ROOT_FOUNDATIONS_LAB_STRATEGY.md §1) — every one tested end-to-end via the real scenario setup/validate API, including negative tests confirming they correctly FAIL when not actually solved (e.g. the process-management scenario fails while the target process is still running; the permissions scenario is tested against a real `su - labuser` denial). Wires rootnode-linux-foundations-assessment (2 required + 4 random-draw scenarios) using the existing Phase 3B assessment engine. Adds a real, server-side ROOT 01->02->03->04->05 course prerequisite chain (courses.prerequisites) — verified live on two students: one who completed ROOT 01 sees ROOT 02 unlock; a fresh student sees ROOT 02 correctly locked while 03/04/05 stay vacuously satisfied (their own prerequisite courses are still empty). ROOT 06+ and the Capstone are unaffected. Co-Authored-By: Claude Sonnet 5 <[email protected]>
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Knowledge Check: Navigating the Filesystem
1. What does .. mean in a path?
Answer: One directory up from your current location.
2. You're at /home/student/project. Does cd project do the same thing here as it did at
/home/student?
Answer: No — a relative path is re-evaluated from your CURRENT location every time. At
/home/student, project refers to /home/student/project; from inside that same directory,
project would refer to /home/student/project/project, which likely doesn't exist.
3. A file is "hidden" from a normal ls. What actually makes it hidden?
Answer: Its name starts with a . — it's purely a naming convention ls respects by
default, not a real permission or security feature. ls -a shows it.
4. Where would you expect to find a running system's log files?
Answer: /var/log — /var holds data that changes while the system runs.
Instructor Notes
Facilitation: Question 2 is the one worth confirming out loud — it's the core "gotcha" of relative paths.
Approximate timing: 5 minutes.