Hi thank you for your response. I'm very new to this i tried to adapt it to make an input an output file but it is not working this is what i did, i put in # what i think is happeing and what i don't understand 

#!/usr/bin/perl
use Modern::Perl;
no warnings qw /uninitialized /;
my @result; # assigns a list?

$INPUTFILE = "/Users/ts/numbers.txt"; # opens my file

open(INPUTFILE) or die("File error: input file\n");
open (OUTPUTFILE, "Users/ts/full_number.txt; #gives output file

while (<INPUTFILE>) {
    chomp; #removes new line
    my ($index, $value) = split /\t/; # a local list of varibles,not t
+o sure what the stuff after spilt is
    $result[$index] = $value; #?
}
$result[3000050] = 0 unless $result[3000050];

while (my ($index, $value) = each @result) {
    next if $index == 0;
    say "$index\t", $value+0;
   
    print (OUTPUTFILE $index\t, $value+0);
}


close (INPUTFILE);
close (OUTPUTFILE)

[download]

am i using the right version of perl for this 

 his is perl 5, version 12, subversion 3 (v5.12.3) built for darwin-th
+read-multi-2level
(with 2 registered patches, see perl -V for more detail)

[download]

once again thank you for your patience!

In reply to Re^4: Completing a list/ array? by Taylorswift13
in thread Completing a list/ array? by Taylorswift13

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