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]>
27 lines
1.2 KiB
Markdown
27 lines
1.2 KiB
Markdown
# Reflection: Filtering Is a Reasoning Skill, Not a Syntax Trick
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## Reflection questions
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1. Before this module, how would you have found "the important lines" in a huge log file?
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How does that compare to `grep`?
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2. Which combination (pipe, redirect, or a specific command like `tail -f`) do you expect to
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use the most once you're doing real troubleshooting work?
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## Real Ops takeaway
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**"Read everything and eyeball it" does not scale — filtering does.** Every troubleshooting
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framework you'll learn later in ROOT_ (starting with ROOT 02's own version, then again more
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formally in ROOT 10) depends on being able to quickly narrow a huge amount of system output down
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to the handful of lines that actually matter. `grep`, pipes, and redirection are the first real
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tools you have for that — not a syntax exercise, a reasoning skill.
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This module is complete. Continue to the next module.
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## Instructor Notes
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**Discussion questions for a live classroom:** question 1 often produces good answers ("I'd
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just scroll and read") that make the value of filtering obvious by contrast — let students
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articulate this themselves rather than stating it for them.
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**Approximate timing:** 5-8 minutes live discussion; 5 minutes self-paced writing.
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