If I had a TSV file to read into an AoA I would let a module do the heavy work:

#!/usr/bin/env perl 
use strict;
use warnings;
use Text::CSV_XS 'csv';
use feature 'say';

my $aoa    = csv (in => 'gene.txt', sep => "\t");
my $header = shift @$aoa;

say join '; ', @$_ for @$aoa;

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In reply to Re: storing a file in 2d array by hippo
in thread storing a file in 2d array by shabird

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