How can I customize my login script?

Hi,
I am realatively new to UNIX (I started 1 week ago), and I need some help on an assignment.

I am trying to find the file that will allow me to modify my login. I did some research, and most of my sources tell me to modify the ~/.cshrc and ~/.login files. The problem is that I cannot find any of those 2 files. I need to modify my login script in such ways that I can customize my prompt, launch my internet browser, etc.

I am *not* asking you to do my assignment. I only need someone to tell me how to start and point me in the right direction, please.

Have a look in your home directory as follows...

  1. determine your home directory
pwd
echo $HOME
echo ~

and see if they all match.

  1. A file that begins with . is normally invisible, do the following
ls -ld ./.*

if you have a .profile or similar it should show up, use cat (or more or less) to show it's contents.