hostname

hostname resolution description

TLDR

Show current host name

$ hostname
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Show the network address of the host name

$ hostname -i
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Show all network addresses of the host

$ hostname -I
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Show the FQDN (Fully Qualified Domain Name)

$ hostname --fqdn
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Set current host name

$ hostname [new_hostname]
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SYNOPSIS

hostname [OPTION...] [NAME]

DESCRIPTION

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.

REPORTING BUGS

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

COPYRIGHT

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.

SEE ALSO

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.

AUTHOR

Written by Debarshi Ray.

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