SQL 2012 on Windows Server 2012 Core - Firewall Configuration

Here is a quick one, only because I messed around missing the obvious after installing SQL 2012 when not being able to connect to the database after installation.  Once I went back to basics and realised the issue was the firewall, I used the following command to configure the Windows Firewall on my Windows Server 2012 Core machine so I could connect to SQL:

netsh advfirewall firewall add rule name="SQL Server 1433" 
  dir=in action=allow protocol=TCP localport=1433

NOTE: The command is wrapped, it should be a single line