hostname

Show current host name

$ hostname

Show the network address of the host name

$ hostname -i

Show all network addresses of the host

$ hostname -I

Show the FQDN (Fully Qualified Domain Name)

$ hostname --fqdn

Set current host name

$ hostname [new_hostname]

hostname [OPTION...] [NAME]

Show or set the system's host name.

-a, --aliases

alias names

-d, --domain

DNS domain name

-f, --fqdn, --long

DNS host name or FQDN

-F, --file=FILE

set host name or NIS domain name from FILE

-i, --ip-addresses

addresses for the host name

-s, --short

short host name

-y, --yp, --nis

NIS/YP domain name

-?, --help

give this help list

--usage

give a short usage message

-V, --version

print program version

Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.

Report bugs to <bug-inetutils@gnu.org>.

Copyright © 2015 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

The full documentation for hostname is maintained as a Texinfo manual. If the info and hostname programs are properly installed at your site, the command info hostname should give you access to the complete manual.

Written by Debarshi Ray.