how to get mac address in macbook pro

It's also available in System Information, under the Network section.

Hold down option and select System Information from the Apple menu.

Select Network, then the particular service type: Airport, Ethernet, Firewire

Scroll down till you see MAC Address:

You can also reveal it in the Terminal with ifconfig. en0 is usually ethernet, en1 is Airport, but that depends on your configuration.

Lot of work to get the MAC address. Try this in Finder.

shift+command+U and double-click on Network Utility.

Default Info screen has hardware (MAC) address for Ethernet (en0). Click on the selector and you have instant access to your Wi-Fi (en1) hardware address.