open(IN, "< input.csv") or die("Couldn't open input.csv\n"); 
open(OUT, "> output.csv") or die("Couldn't open output.csv\n"); 

while (<IN>) {
chomp;
  #Displays total size of specified path (total includes subfolders)
  print "Walking $_\n";
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}
print "\n\tOutput created.\n";
close(OUT);
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