$VAR1 = {
          'component1' => {
                            'name' => 'command4',
                            'id' => '004'
                          },
          'component2' => {
                            'name' => 'command8',
                            'id' => '014'
                          }
        };

##</code><code>##

%component_tree = (
  component1 => [
    { name => 'command1', id => '001' },
    { name => 'command2', id => '002' },
    { name => 'command3', id => '003' },
    { name => 'command4', id => '004' },
  ],
  component2 => [
    { name => 'command5', id => '011' },
    { name => 'command6', id => '012' },
    { name => 'command7', id => '013' },
    { name => 'command8', id => '014' },
  ],
);

##</code><code>##

for my $comp (keys %component_tree)
{
    print "Checking $comp...\n";
    for my $data (@{$component_tree{$comp}})
    {
        print "    Found ", $data->{name}, " (id [", $data->{id}, "])\n";
    }
}

##</code><code>##

Checking component1...
    Found command1 (id [001])
    Found command2 (id [002])
    Found command3 (id [003])
    Found command4 (id [004])
Checking component2...
    Found command5 (id [011])
    Found command6 (id [012])
    Found command7 (id [013])
    Found command8 (id [014])