in reply to
Re^2: Compare 2 CSV files and create a new CSV file out of comparision
in thread Compare 2 CSV files and create a new CSV file out of comparision
See perlintro or perldata for a description of hashes. "key" and "value" are terms used together with hashes.
If you search for join files or similar keywords, you'll find quite a bit of example code, for example join mutiple files on first column and join - join two files according to a common key.
Compiling them myself
Merijn's HP-UX software
Whatever is shipped with my OS release
None, i use PerlScript
Results (192 votes),