% for server in $(dig +short +nodnssec fr NS); do
  echo $server
  dig +short +nodnssec -4 @$server bortzmeyer.fr DS
done
d.nic.fr.
52726 8 2 91E907DB04319EAE1BAF14CE3006D94C4C94618BC4BF4CD7FA36DCF1 5B8AA8C9
e.ext.nic.fr.
52726 8 2 91E907DB04319EAE1BAF14CE3006D94C4C94618BC4BF4CD7FA36DCF1 5B8AA8C9
f.ext.nic.fr.
52726 8 2 91E907DB04319EAE1BAF14CE3006D94C4C94618BC4BF4CD7FA36DCF1 5B8AA8C9
g.ext.nic.fr.
52726 8 2 91E907DB04319EAE1BAF14CE3006D94C4C94618BC4BF4CD7FA36DCF1 5B8AA8C9

Idem en IPv4, bien sûr : ``` % for server in $(dig +short +nodnssec fr NS); do echo $server dig +short +nodnssec -4 @$server bortzmeyer.fr DS done d.nic.fr. 52726 8 2 91E907DB04319EAE1BAF14CE3006D94C4C94618BC4BF4CD7FA36DCF1 5B8AA8C9 e.ext.nic.fr. 52726 8 2 91E907DB04319EAE1BAF14CE3006D94C4C94618BC4BF4CD7FA36DCF1 5B8AA8C9 f.ext.nic.fr. 52726 8 2 91E907DB04319EAE1BAF14CE3006D94C4C94618BC4BF4CD7FA36DCF1 5B8AA8C9 g.ext.nic.fr. 52726 8 2 91E907DB04319EAE1BAF14CE3006D94C4C94618BC4BF4CD7FA36DCF1 5B8AA8C9 ```