What is @data?
@data is the contents of the csv file in an array.
What are $one, $two, $three, $four?
This is the incoming data form the four drop downs in a html page
What are the requirements for @result?
A simple specific match against the incoming data and the CSV data. If drop downs $one and $four have been selected I want to display the reults.The data is mostly numerical

Testing against constent incoming data (for example $one $two $three $four) is fine as I can match the incoming data against where I want to look for it in the CSV @data and I know there is always something incoming.
But I don't know how to do this for say $one and $two or $two and $four etc which is why I was looking at grep.