DevOps Challenge: SysAdmin Starter Pack

Overview

Simple Bash script setup-environment.sh automates creating a starter folder layout with logs, configs, and scripts, adds sample content, and sets permissions. Includes idempotent directory creation and a fallback when tree is unavailable (e.g., Git Bash on Windows).

What the script does

• Creates directories: logs/, configs/, scripts/ (skips if they already exist).
• Creates files with starter content: logs/system.log, configs/app.conf, scripts/backup.sh.
• Ensures configs/app.conf is writable before rewriting on reruns, then sets permissions:
  • logs/system.log -> 644
  • configs/app.conf -> 444
  • scripts/backup.sh -> 755
• Shows structure with tree . or falls back to find . -maxdepth 4 -print.
• Lists permissions with ls -lR ..

How to run

chmod +x setup-environment.sh
./setup-environment.sh

Expected outputs

• Full-screen run showing date/time: screenshots/full-run.png (replace with your capture).
• A rerun showiwing the idempotency of the script and robust error handling : screenshots/rerun.png

Problems faced and fixes

• tree not found in Git Bash on Windows → added a check: use tree . when available, otherwise fall back to find . -maxdepth 4 -print.
• Re-running after setting configs/app.conf to read-only (444) caused “Permission denied” → added chmod u+w configs/app.conf 2>/dev/null || true before rewriting so reruns succeed without breaking on set -e.