Man1 - hostname.1

hostname - show or set system host name

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.

Written by Debarshi Ray.

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

Copyright © 2021 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later https://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.