I have this code: 
$file = "path/to/file";
open( FILE, "<", "$file") or die $!\n";
$_ = do { local $/; <FILE> };
close(FILE);

$not_filtered = $_;
s/match/replace/gi;
s/match1/replace1/gi;
print $_;

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How do I print only differences, between initial value ($not_filtered) and final value of $_? I found String::Diff, but I don't want to load an extra module. Thank you!!

In reply to Comparing $_ --- before/after by mrc

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