inetutils-dnsdomainname(1)
Show the domain part of the system's fully qualified host name.
Description
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)