You want to keep a local copy of a web page up-to-date.
use LWP::Simple; mirror($URL, $local_filename);
Although closely related to the
Be careful! It's possible (and easy) to write programs that run amok and begin downloading all web pages on the net. This is not only poor etiquette, it's also an infinite task, since some pages are dynamically generated. It could also get you into trouble with someone who doesn't want their pages downloaded en masse.