Here is a different approach using XML::Twig. I consider this a more brute-force, less elegant solution than that provided by GrandFather. However, it illustrates the TIMTOWTDI-ness of Twig; perhaps you are more comfortable thinking of this as looping through elements, rather than the more powerful use of handlers (as I currently am). I have borrowed GrandFather's cleaned up XML text. 
use strict;
use warnings;
use Data::Dumper;
use XML::Twig;

my $xmlStr = <<XML;
<config>
 <one id="msn" type="shopping">
   <traffic>
       <daily value="on" />
       <weekly value="off" />
       <monthly value="off" />
   </traffic>
  </one>

 <one id="movies" type="entertainment">
   <traffic>
       <daily value="on" />
       <weekly value="off" />
       <monthly value="on" />
   </traffic>
 </one>

 <one id="espn" type="sports">
  <traffic>
      <daily value="on" />
      <weekly value="on" />
      <monthly value="on" />
      <hyper value="true" />
  </traffic>
 </one>
</config>
XML

my @ids;
my $t = XML::Twig->new();
$t->parse($xmlStr);
for my $one ($t->root()->children('one')) {
    push @ids, $one->att('id');
}
print Dumper(\@ids);

__END__

$VAR1 = [
          'msn',
          'movies',
          'espn'
        ];

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In reply to Re: trying to understand xml::twig and also trying to learn how to extract attribute by toolic
in thread trying to understand xml::twig and also trying to learn how to extract attribute by convenientstore

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