my %sort_file;
open (FILE, "$data") or die $!;
@all=<FILE>;
close (FILE);

my $points_total= "/path/points_total.txt";   


open FH, "$points_total" or die "Can't open $points_total: $!";
flock (FH, 1) or die "Can't lock $points_total for reading: $!";
my @fh=<FH>;
close FH;

#create hash of sort file
foreach (@fh) {
	chomp;
	($checkIDNumber, $total_points) = split "\t",$_;
	$sort_file{$checkIDNumber} = $total_points;
}	

foreach $line (@all){
$line=~s/\n//g;

($undef,$undef,$IDNumber,$Email_address,$Page_Name)=split (/\t/,$line);

	if (exists ($sort_file{$IDNumber} )) {
		$sortfield = $total_points;
	} 	else {
		$sortfield = "";
	}	
}