View or Change Local System Names on Mac OS X - OSX

name.sh

#!/bin/sh
#
# View or Change Local System Names
#
# to view:       ./name.sh
# to change:     ./name.sh newname
# passwordless:  sudo ./name.sh
#

if [ -z ${1+x} ]
# $1 is unset
then
echo HostName \(Terminal Prompt\) - generally "HostName: not set"
scutil --get HostName
echo LocalHostName \(Network\)
scutil --get LocalHostName
echo ComputerName \(Bonjour\) - generally the same.
scutil --get ComputerName
else
# Terminal Prompt
scutil --set HostName $1
# Network
scutil --set LocalHostName $1
# Bonjour
scutil --set ComputerName $1
fi