If you want to get all the divs on a page, you make a tree out of the full page, look down the tree and collect all the divs, and then you can use method as_text to print out just the text.

use HTML::TreeBuilder;
my $tree = HTML::TreeBuilder->new_from_file('test.html');
my @divs = $tree->look_down(_tag => 'div');

print $divs[0]->as_text();
[download]

I saved this node to test.html, and so it outputs your first post.

Output:

I'm having trouble with using Perl to parse an HTML file I have, where I'm trying to grab all <a>...

I'm not going to repost it all, but the full text of your first post is there.

When you want to match regular expressions you have to pass a sub ref to look_down. There is an example in HTML::Element. Also, here is a quick intro: HTML::Tree(Builder) in 6 minutes. And a more thorough article: HTML::Tree::Scanning