What I would to have is an array that contains only one of the columns: i.e.
Code:
Gender
M
F
M
M
F
As far as code goes, as far as I can get is to print every line in the file:
Code:
#!/usr/bin/perl
use warnings;
use strict;
open FILE, "data.csv", or die $!;
while (<FILE>) {
chomp;
my @arr = $_;
print "$_ \n";
}
I believe that I have to use the split() function, but i'm not sure how.
Also, I have seen lines of code that look like Tie::Hash... But I don't know what its used for.
Thanks in advance
Moderator's Comments:
Use code tags for code, please.
Last edited by Corona688; 04-12-2012 at 02:04 PM..
Push, pop, shift and unshift are instructions to handle arrays. Next program should work for your problem:
Code:
use warnings;
use strict;
die qq[There is no argument\n] if @ARGV < 1;
open my $file, qq[<], $ARGV[0] or die $!;
my @arr;
while ( <$file> ) {
## Omit header.
next if $. == 1;
## Omit blank lines.
next if m/\A\s*\Z/;
## Remove last '\n'.
chomp;
## Split fields with comma.
my @f = split /,/;
## Add third file to array.
push @arr, $f[2];
}
exit 0;
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