use FastEAV;

my $dal = FastEAV->new( file => "d:/tmp/personen") or die $@;

# neue Person anlegen
my $id = $dal->lfdnr;
$dal->checkin($id, name => 'Otto', vname => 'Hans');

my $p = $dal->checkout(12);
$p->{ort} = 'Adorf',
$p->{plz} = 12345;
$dal->checkin(12, %$p);

# Daten sichern
$dal->write;