Why am I paying for this if there are mostly bots...? And now you have bots spreading virus links!! Whoever runs this page FIX IT or you'll lose a lot of paying members.

Write a program that asks the user to enter the name of an input file. if the file does not exist, the program should prompt the user to enter the file name again. if the user types quit in any uppercase/lowercase combinations, then the program should exit without any further output.