Man page - inetutils-dnsdomainname(1)
Packages contains this manual
apt-get install inetutils-tools
Manual
dnsdomainname (1) User’s Reference Manual dnsdomainname (1)
NAME
dnsdomainname — show DNS domain name
SYNOPSIS
dnsdomainname [ option ... ]
DESCRIPTION
Show the domain part of the system’s fully qualified host name.
The tool uses gethostname (2) to get the host name of the system and getaddrinfo (2) to resolve it into a canonical name. The part after the first period (‘.’) of the canonical name is shown.
OPTIONS
-
?,
--help
Give this help list.
--usage
Give a short usage message.
-V , --version
Print program version.
SEE ALSO
gethostname (2), getaddrinfo (3) GNU Network Utilities February 1, 2019 dnsdomainname (1)