my @fields = split "," , $line;
  my $data = $fields[5];
  my $uid;

  my $filter = "(extensionAttribute1=$data)";
  my $result = $ldap->search ( base => 'DC=Infoedge,DC=com',
                        filter => $filter,
                              );
  foreach my $entry ($result->entries){ 
  $uid=$entry->get_value('sAMAccountName');
  }