Unknown option: "-7" Unix manual page for hostname. (host=minya system=Darwin)
HOSTNAME(1)               BSD General Commands Manual              HOSTNAME(1)

NAME
     hostname -- set or print name of current host system

SYNOPSIS
     hostname [-fs] [name-of-host]

DESCRIPTION
     The hostname utility prints the name of the current host.  The super-user
     can set the hostname by supplying an argument.  To keep the hostname
     between reboots, run `scutil --set HostName name-of-host'.

     Options:

     -f    Include domain information in the printed name.  This is the
           default behavior.

     -s    Trim off any domain information from the printed name.

SEE ALSO
     gethostname(3), scutil(8)

HISTORY
     The hostname command appeared in 4.2BSD.

BSD                            December 7, 2006                            BSD