host(1) on Linux
The text f2b62b5638f8, as Debian 1.2 (Rex), Debian 1.1 (Buzz) shipped it.
query nameserver about domain names and zones
Flags it lists
-
-R -
-S -
-T -
-V -
-Z -
-a -
-d -
-e -
-i -
-m -
-n -
-o -
-p -
-q -
-r -
-u -
-v -
-w