Register and enqueue script in WordPress

wpbootstrap_scripts_with_jquery.php

<?php
	function enqueue_script_in_wordpress()
	{
		wp_register_script( 'first-script', '/to/the/file' );
		wp_register_script( 'second-script', '/to/another/file' );

		// not like this
		// wp_register_script( 'custom-script', '/to/the/file' );
		// wp_register_script( 'custom-script', '/to/another/file' );
	}