CyberMinds Task Knowledge: #105 CTF-01 Linux Basics Warmup

Issue: https://github.com/Cyber-Minds/CyberMinds/issues/105 Owner: @ADGEEJU Due: 2026-04-24

Objective

Ship beginner challenge for core Linux navigation and permissions awareness.

Recommended Build Plan

1. Add challenge metadata entry and UI/terminal surfacing.
2. Provide starter instructions for pwd, whoami, ls -la.
3. Require report.txt output with ownership summary.
4. Add deterministic checker for expected report structure.

Security And Safety

• Reject filenames outside expected set (report.txt only).
• Do not execute user-provided text as shell commands.
• Keep fixtures synthetic and avoid embedding answer keys.

Quality Checks

• Test valid/invalid submission examples.
• Validate checker output is stable across reruns.
• Ensure failure messages are actionable for learners.