Shell: Connecting to a website and accessing a field

Question

I want to write a script that takes an argument which is text, opens a connection to a specific website and input the arg into text field using the field\'s ID. Is this poss

Answer 1

... "opens a connection to a specific website and input the arg into text field using the field's ID" ...

You mean you want to fill & send a HTML

...

, right?

I would use curl (http://curl.haxx.se/). With curl you can automate HTTP POST requests very easily, suppose you have website with following form (excerpt from: http://curl.haxx.se/docs/httpscripting.html):

this command would fill & send the form (let's pretend that form is available on http://www.example.com/when.cgi):

curl --data "birthyear=1905&press=%20OK%20" http://www.example.com/when.cgi