How to know which beagleblackBone version I am using?

Hi,
How can I know from the command prompt which BBB version(Rev A,B or C?) I am using?Or by looking at its PCB?
Thanks in advance !
Rgds,
Rp

On Mon, 15 Aug 2016 21:25:39 -0700 (PDT), Raulp
<raulpblooper@gmail.com> declaimed the
following:

Hi,
How can I know from the command prompt which BBB version(Rev A,B or C?) I
am using?Or by looking at its PCB?

http://elinux.org/Beagleboard:BeagleBoneBlack#Board_Revisions_and_Changes

Typically it is printed on the big white label on the side of the black expansion connector.

Gerald

Command prompt? What you do flash it with MSDOS lol?