#!/usr/bin/env bash
set -euo pipefail
IFS=$'\n\t'

# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
NC='\033[0m'

log() { echo -e "${GREEN}[INFO]${NC} $1"; }
err() { echo -e "${RED}[ERROR]${NC} $1" >&2; }

cleanup() {
    log "Cleaning up..."
    # Remove temp files, etc.
}
trap cleanup EXIT

main() {
    local input="${1:?Usage: $0 <input>}"
    log "Processing: $input"

    if [[ ! -f "$input" ]]; then
        err "File not found: $input"
        exit 1
    fi

    # Your logic here
    log "Done!"
}

main "$@"