1.

use XML::Twig ;
XML::Twig->new(
  twig_handlers => {
    '*' => sub {
        print $_->xpath, "\n";
     },
  },
)->xparse( "somefile.xml" );
[download]

2.

use XML::Twig ;
XML::Twig->new(
  start_tag_handlers => {
    '_all_' => sub {
      print $_->xpath, "\n";
    },
  },
)->xparse( "somefile.xml" );
[download]