There is a site which provides student details when you type id. It uses mydomain.com/site/stu.pl?id=001 i want to capture all the students details with out manually checking one by one. How to do it?
You want to use a practice called web scraping. Basically you write a script which visits the URL over and over again, extracting the information you want and saving it somewhere (a file or database). Watch out though, the server might ban your IP or start requiring captchas before it shows you valuable information. Scraping can be done in a number of languages and many freelancers offer this service.