in reply to / deliminator
you can do @simpsons=split(/\//,$_);
The \ will allow you to escape any of the special characters in regexes. For example:
. means any character besides \n(newline) basically so if you wanted to see if a filename had a .txt extension you would do this:
if($filename=~/\.txt$/){ #searches for .txt the $ matches the end of the string
#do something
}