Computer name
Changing the computers name is done using the scutil command. To get the computers current name use the following commands.
sudo scutil --get ComputerName
sudo scutil --get LocalHostName
sudo scutil --get HostName
To set the computer name use the following commands.
sudo scutil --set ComputerName "computer name"
sudo scutil --set LocalHostName "local hostname"
sudo scutil --set HostName "hostname"