Need help

Given: large file with list of files and folder which contain a great number of files.
Need: remove from list files which exist in a folder.
Tools: Bourne Shell or Windows command line or Python.

>>9
OKAY YOU FUQIN ANGERED AN EXPERT PROGRAMMER
GODFUCKIGNDAMN
FIRST OF ALL, YOU DONT FUQIN KNOW WHAT A MAN PAGE IS
SECONDLY, THIS IS /prog/ DO NOT DEMAND USEFUL ANSWERS THE WAY YOU WANT THEM TO BE
THIRDLY PROGRAMMING IS ALL ABOUT PHILOSOPHY AND ``ABSTRACT BULLSHITE'' THAT YOU WILL NEVER COMPREHEND
AND FUQIN LASTLY, FUCK OFF WITH YOUR BULLSHYT
EVERYTHING HAS ALREADY BEEN ANSWERED IN >>4,8