Ankit wrote a nice post about using Java to fill up a form, which is a FCFS allocation (can’t they just *provide* a quantity of good courses?). However, filling up the form can be simply done by a Firefox extension, Autofill forms; but what I would really like to do is be sleeping while the course registration goes on. 
Ingredients: Firefox, bash, curl, a bit of common-sense
1) First of all, install two Firefox extensions – Web Developer and Firebug.
2) Fill up the form that you’re going to fill up. (don’t get lost in recursion here!)
3) Follow the screenshot below and convert POST to GET.
4) Now open up Firebug console (press F12), select the Net tab, and enable it.
5) Now click on Submit:
Ignore the “Registration is currently closed”, look at the console, you’ll have a big url that corresponds to your choices, just copy it.
It will be of the form:
<url>?<data>
6) To simulate this form submission, you’ll need this command:
curl <url> -d <data> -k -L
7) However, there is a problem, you have to authenticate first. No sweat:
curl https://isas/validate.php -d ‘StUdent=username&searchin=200&password=password&submit=Submit’ -c cookies.txt -k -L
This will save the login cookies in a file named cookies.txt
So now we finalize the script:
#!/bin/bash
while (( 1 ))
do
curl https://isas/validate.php -d ‘StUdent=username&searchin=200&password=pass&submit=Submit’ -c cookies.txt -k -L #Change username and pass accordingly
curl https://isas/registration/updateSpecialReg.php -d <data> -k -L -b cookies.txt
sleep 5s #We don’t wanna hammer the server down 
done
While I sleep on.
PS0: If you can’t get this to work, read about HTTP 402.
ShArK
You definitely need a girl friend. No doubt about it!
Now why don’t you do the same thing using greasemonkey ? it might be fun
gaganpreet
I’ve already tried using greasemonkey. It wasn’t as slick as this.
ZenWalker
Now both of u need GFs
gaganpreet
From what information I have, Rishabh doesn’t. And I really don’t care.
ajay
Nice
. If only I knew this in my 4-1.
Dr. Manhattan
Why do you all ppl abide by the rules of isas ?
I remember a quote from “Matrix”:
These rules are no different than those of a computer system.
Some of them can be bent.
Others . . .
. . . can be broken.
/*Post edited by admin*/
gaganpreet
@Ajay So you were sleeping while the registration was going on?
@Dr. Manhattan Sorry dude, information about SQL injections might be dangerous so I had to edit your comment.
MaVeRiK
I just cant imagine…. what will happen at the next Registration….
Poor ISAS !!
gaganpreet
Anti-bot measures.
)
Sambhav
Curious to know wht happens to ISAS the next sem and who gets what course if every one uses the same script (except the one having more smarter Hacks
)… I guess , it’ll finally be down some random allocation 
gaganpreet
I won’t know, I’ll be sleeping while the registration goes on.
ShArK
I was submitting some grades to in the office today and told Appaji about your script. He was NOT happy about it and was asking whodunnit !!!
gaganpreet
Why you ungrateful little…