Or an array of arrays, but this would use more memory than using hashes as suggested above, which might be important if your files are very
my $fileName = $ARGV;
my $numberOfColumns = 0;
my @line = ();
my $lineNumber = 0;
my $x = 0;
my $p = 0;
my @arrayOfArrays = ();
my $firstTime = 0;
open (FILE, "<", $fileName);
@line = split (",", $_);
if ($firstTime == 0)
$numberOfColumns = @line;
$firstTime = 1;
for($x = 0; $x < $numberOfColumns; $x += 1)
$arrayOfArrays[$x][$lineNumber] = $line[$x];
#to access your values: column one: $p=0, column 2: $p = 1 etc.
for ($p = 0; $p < $numberOfColumns; $p += 1)
for ($x= 0; $x<$lineNumber; $x += 1)
print STDERR "$arrayOfArrays[$p][$x]\n";
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