#!/usr/bin/perl -w
use strict;		
use warnings;
use diagnostics;
use Getopt::Std;

#reading options
our ($opt_i);
getopts('i:');
if (!$opt_i) {
    print STDERR "\nInput file name (-i) required\n\n\n";
}
#open the file or die
open INFILE, "<", $opt_i or die "No such input file $opt_i";

while (<INFILE>) {
chomp;
my @fh = <INFILE>;

my @fh = split ('\t', $_);
#print "@fh";
	my $geno = shift @fh;
	
	
#open directory. the "." represents current directory
opendir(DIR, ".");

#place all files in an array
#@files = readdir(DIR);
	my @files = glob("*.txt");

#close directory
closedir(DIR);
my @merge;

#process each file
	foreach my $file (@files) {
	open FILE, "<", $file;
	
	while(my @line = <FILE>) {
		foreach my $comb (@line) {

		print "$geno\t"."$comb";
	close FILE;
	 
	}
		
}
}
}
close INFILE;