🏴‍☠️ Blackbeard's Tavern 🍺

Useful Automation Scripts

Copy and paste these into your terminal. Always read a script before running it.

System update (Rocky/RHEL-based)

sudo dnf update -y && sudo dnf autoremove -y

Find largest files on disk

du -ah / 2>/dev/null | sort -rh | head -20

Check open ports

sudo ss -tulpn

Backup a folder with timestamp

tar -czf backup_$(date +%Y%m%d_%H%M%S).tar.gz /path/to/folder

Monitor system resources live

htop

Auto-organize Downloads folder by file type

mkdir -p ~/Downloads/{Images,Videos,Audio,Documents,Archives,Scripts}
cd ~/Downloads
for f in *; do
  [ -f "$f" ] || continue
  case "${f,,}" in
    *.jpg|*.jpeg|*.png|*.gif|*.webp|*.svg) mv "$f" Images/ ;;
    *.mp4|*.mkv|*.mov|*.avi|*.webm) mv "$f" Videos/ ;;
    *.mp3|*.wav|*.flac|*.ogg|*.m4a) mv "$f" Audio/ ;;
    *.pdf|*.docx|*.txt|*.xlsx|*.pptx) mv "$f" Documents/ ;;
    *.zip|*.tar|*.gz|*.rar|*.7z) mv "$f" Archives/ ;;
    *.sh|*.py|*.js) mv "$f" Scripts/ ;;
  esac
done
echo "Downloads folder organized!"

Watch a folder and auto-sort new files (live)

sudo dnf install inotify-tools -y
mkdir -p ~/Downloads/{Images,Videos,Audio,Documents,Archives}
inotifywait -m -e create --format '%f' ~/Downloads | while read FILE; do
  case "${FILE,,}" in
    *.jpg|*.jpeg|*.png|*.gif) mv ~/Downloads/"$FILE" ~/Downloads/Images/ ;;
    *.mp4|*.mkv|*.mov) mv ~/Downloads/"$FILE" ~/Downloads/Videos/ ;;
    *.mp3|*.wav|*.flac) mv ~/Downloads/"$FILE" ~/Downloads/Audio/ ;;
    *.pdf|*.docx|*.txt) mv ~/Downloads/"$FILE" ~/Downloads/Documents/ ;;
    *.zip|*.tar|*.gz) mv ~/Downloads/"$FILE" ~/Downloads/Archives/ ;;
  esac
done

Delete files older than 30 days in a folder

find /path/to/folder -type f -mtime +30 -delete

Check disk space usage summary

df -h --total | grep total

List all running services

systemctl list-units --type=service --state=running

Create a swap file (useful for low-RAM VMs)

sudo fallocate -l 2G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab

Compress all images in a folder (requires ImageMagick)

sudo dnf install ImageMagick -y
cd /path/to/folder
mkdir -p compressed
for f in *.jpg *.jpeg *.png; do
  [ -f "$f" ] || continue
  convert "$f" -quality 75 -resize 1920x1920\> "compressed/$f"
done
echo "Images compressed into ./compressed"

Find and kill a process using a specific port

sudo lsof -i :PORT_NUMBER
# then run:
sudo kill -9 PID

Auto-renew SSL certificates (Certbot cron check)

sudo certbot renew --dry-run