Shortcode to display copyright notice with current year

shortcode-copyright.php

<?php

/**
 * Shortcode to display copyright notice with current year
 * @author Alain Schlesser (alain.schlesser@gmail.com)
 */
function as_shortcode_copyright() {
  
  // generate output in the form of "(C) 2015 Greatest Blog Ever"
	$copyright = '&copy; ' . date( 'Y' ) . ' ' . get_bloginfo( 'name' );
	
	return $copyright;
}


// register as shortcode [copyright]
add_shortcode( 'copyright', 'as_shortcode_copyright' );

Don't print the current year as copyright date. Here is an explanation why:
https://stackoverflow.com/a/2391555