In Linux, using a Bash Terminal, I can do: hostname -d to display the name of the DNS domain, and hostname -i to display the network address(es) of the hostname . How can I retrieve the same information--preferably using a single command (with option, if needed), and without having to elevate privileges--from a Bash terminal in Mac OS X? For reference, here's the Bash Version I'm using in Mac OS X:  GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin15) . 
Mac OS X Terminal Equivalent for Host Name Info
command line;osx;hostname