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  1. or download this
    use strict;
use warnings;
...
my $infile_name = "DeviceTrim.csv";
open my $CSV_INPUT, "<", $infile_name or die "$infile_name: $!";
my $row = $csv->getline ($CSV_INPUT);
  2. or download this
    Can't call method "getline" on an undefined value at DeviceTrimGen.pl 
+line 7.