[ Thanks to drtorque for this link.
“Even if you don’t know how to access databases using a Web
browser or use an RSS reader, you can extract information from the
Internet through Web page scraping. Here’s how you can use some
Linux-based tools to get data.
“First, you need to decide what data you want and what search
strings you’ll use to get it. Obviously, if you need only three
lines of information, cutting and pasting is the best way to go.
However, if a Web page has 640 lines of useful data that you need
to download once a day for the next week, automating the process
makes a lot of sense…”