Why not just check if the backup exists for each input file using one of the filetest operators -X ?

for my $file (glob('*.xml') ) {
  if (-r "$file.bak" ) {
     print "backup found for $file\n";
  }
}

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In reply to Re: comparing contents of two arrays and output differences by RichardK
in thread comparing contents of two arrays and output differences by PitifulProgrammer

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