Hi, this is part of my perl script: 

my $C = getDistance ($common_node);
print $C;
sub getParent
{
    my ($taxId) = @_;
    my @parent_list = "";
     while ($taxId = $taxId1){
        my $parent = `getz "[taxonomy:$taxId1]" -f pid`;
        chomp $parent;
        $parent =~ s/PARENT ID                 :/ /;
        $taxId1 = $parent;
        push @parent_list, $parent;
#      
    }
        return @parent_list;    
}
sub getDistance
{
    my ($common_node) = @_;
    my $id;
    my $count;
    do{
       $id = getParent ($taxId);
       $count++;
       }until ($id eq $common_node);
       return $count;
}

[download]

It seems OK but I don't know why it doesn't have any output. Any response would be appreciated.

In reply to perl question by semi

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