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

From: mark <m.roth at 5-cent.us>
> John Doe wrote:
> > From: hadi motamedi 
> >> 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)...
> 
> *sigh*
> 
> Drive me crazy, why use multiple commands?
> 
> awk -F 'BEGIN { FS = ","; }{if ( $3 !~ /^0 ) { count++; }} END { print count }' 
> filename

Oh no!!!  Don't get mad!!!  ^_^
Teaching some UNIX pipes to a "beginner" can be helpful you know...
And it is $4...

JD