Provided by: inetutils-tools_2.5-6ubuntu1_amd64 bug

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)