So I am trying to find out the display manufacturer of my new iMac. At the username prompt, I copied and pasted the command that is floating around (without quotes): "ioreg -lw0 | grep IODisplayEDID | sed "/[^<]*</s///" | xxd -p -r | strings -6" but it did not produce any information. Instead it just brought up another username command line. I have very little experience working with terminal and haven't been able to find any step by step guides. What am I doing wrong here? Thanks.