Automatically downloading files from a specific website

I am a very new programmer.. A website is providing a lot of zip files that i needed. It w开发者_运维问答ill be updated/uploaded new zip files weekly. What I need to do is write a program/script to do auto downloading from the web weekly.. for example, this is the web link http://www.google.com/googlebooks/uspto-patents-applications-yellowbook.html ( you can see a lot of zip files there )

so my question is

1. What script i have to write(i got no experience in writing any script, so what can you suggest?) so i can download the zip file programmatically?

2. If the 1st questioned solved, then how should i make it to download the new zip file uploaded weekly?

Is it i have to use DOM...unix? if yes, i will do some research on tat to make it work.

---

Why wget? You can use HtmlAgilityPack to parse the website and extract all links. Then you simply loop over all urls and download the file, using C# all the way through. You can also open a wget process from c# if you wish to do so.

On the other hand, this can easily be done using bash and sed/awk and grep in combination with wget.

Either way you will still need cron to schedule the job on a weekly basis.

WebClient Client = new WebClient ();
Client.DownloadFile("http://www.csharpfriends.com/Members/index.aspx", "index.aspx");

---

I've also used JSoup (http://jsoup.org/) very effectively in Java/Scala applications to scrape data out of web pages.

---

If you are on Linux/UNIX, use 'wget' in a script for downloading the files, and 'cron' to schedule the downloading script.