#!/usr/bin/env bash
set -eo pipefail

if [[ "$1" == "-h" || "$1" == "--help" ]]; then
    cat <<EOF
Usage: $(basename "$0") [-h]

Display current time and unix timestamp (updates every second).

Options:
    -h, --help    Show this help message

EOF
    exit 0
fi

watch -tn 1 date '+%H:%M:%S%n%s'
