Something like this: 

use strict;
use warnings;

use Text::CSV;

my $csv = Text::CSV->new( { binary => 1 } );
my $tsv = Text::CSV->new( { binary => 1, sep_char => "\t" } );

open my $infh,  '<:utf8', 'input.csv'  or die $!;
open my $outfh, '>:utf8', 'output.tsv' or die $!;

while ( my $row = $csv->getline($infh) ) {
    $tsv->print( $outfh, $row );
    print $outfh "\n";
}

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In reply to Re: Convert CSV file to TAB delimited by zwon
in thread Convert CSV file to TAB delimited by TCM

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