Although you say that you put the values on a hash, you don't. The code you show us puts them onto an array. 
my %countries;
while (<DB>){
    my @entries = split m/,/, $_;
    $countries{$entries[1]}++;
}

for (reverse sort { $countries{$a} <=> $countries{$b} } keys %countrie
+s){
    print "$_\t\$countries{$_}\n";
}

[download]
should do the trick (untested).

Update: no, the \ was not intentional, of course it's print "$_\t$countries{$_}\n";. Thanks cdarke.

In reply to Re: Need help on hashes. by moritz
in thread Need help on hashes. by ElMagnifico

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