Simple programs for recording chess games -- Like ECTool -- for Ubuntu and Windows I should be able to google this, but I don't know what the name for this item is:

I'm looking for a simple program that can be used to record and play back a chess game. I'm not looking for a computer program to play against, and I'm not looking for a client to connect to an ICS.

I just want to record the moves of an old-fashioned postal game.

Any suggestions for free programs that do this? I'd like suggestions for both Ubuntu and Windows.

Update:
I recall using ECTool for this purpose in a previous century, but it seems to be not maintained beyond Windows XP.
It sounds to me like what you want is a chess database program. If so, the one I would recommend is Scid, which is totally free, and comes in Windows, Linux and Mac flavors.