I've got a PERL code running on a server, which after calculations has some results as output. The output has two columns. I want to compare one column of the output to one column of a .csv file (which will be stored on the server, doesn't change). If an element from output is found on the .csv file, then the code should print out the corresponding line of the .csv file.
Also, the user should be able to upload his own file for comparison to the .csv file.