[CentOS] Inquiry:How to compare two files but not in line-by-line basis?

From: hadi motamedi <motamedi24 at gmail.com>
> Can you please do me favor and let me know if I can go further and try for advanced search like finding how many rows inside a file have data that does not start with a zero after the third comma ?

Something like:
  awk -F, ' { print $4 } ' | grep -v "^0" | wc -l
Use one command at a time to see how they work with each other (you might have to modify the grep a bit)...

JD