def get_language(file_path):
	"""Return the language a file is written in."""
	if file_path.endswith(".py"):
		return "python3"

	elif file_path.endswith(".js"):
		return "node"

	elif file_path.endswith(".rb"):
		return "ruby"

	elif file_path.endswith(".go"):
		return "go run"

	elif file_path.endswith(".c") or file_path.endswith(".cpp"):
		return "gcc"
	else:
		return "Unknown language."