@hdr_ad ~~ @hdr_hr or die "Uncompatible headers between HR and AD files\n";

The  ~~ smartmatch operator is discouraged from use in production code. | not encouraged for use in production code because it is "experimental." See Terminology in perlpolicy.

Give a man a fish:  <%-{-{-{-<

In reply to Re^2: Comparing two files line by line and exporting the differences from the first file (updated) by AnomalousMonk
in thread Comparing two files line by line and exporting the differences from the first file by jzelkowsz

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