I don't see any scenario that results in a "little command line script" to do what you want.
I've only written a few web scrapers, but I have some advice for you. I think you are into a pretty complicated situation. I looked at the page source of the web page you specified. What I see is a whole mess of computer generated java script code. The number you want, the price of gold isn't on that page. The browser runs some java code on that page in order to get the price of gold. Perl cannot run java code. Only browsers can run java code. There is a module WWW::Mechanize::Chrome which would allow Perl to control a Chrome browser. But this gets complicated.
Updated: I made a mistake. The price does indeed appear be within the HTML generated. that means that Java Script is not necessary to see the actual price. Look at the page source yourself to see how I could have missed it! See below posts. Also see another post suggesting a google search for API's.

My advice is to look somewhere else on the Web for the information you desire. Ideally one of the commodity markets has an API to get what you want without involving a browser at all. I am basically assuming that there has got to be a better way to get gold/silver prices than just this one website. I would give you this same advice even if you were paying me to do this for you. Go look some more for other ways. Good luck!

In reply to Re: how do I scrape this web page by Marshall
in thread how do I scrape this web page by Anonymous Monk

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