Robust Error Handling in Scripts

Shell scripts:

set -euo pipefail  # Exit on error, undefined var, pipe failure
trap 'echo "Failed at line $LINENO"' ERR

Python scripts:

import logging, sys
logging.basicConfig(level=logging.INFO, format='%(asctime)s %(levelname)s %(message)s')
try:
    main()
except Exception as e:
    logging.exception("Unhandled error: %s", e)
    sys.exit(1)