login script

I am trying to delete some files using my login script batch file which is just a text document.

I put in the command line

del c:\foldername\filename

When I run the batch file it asks if I am sure I want to delete it. I dont want the users to have to do this so is there a command I can put in that answers the question Y and performs a carrage return. I tried /y and that did not work.