Helping people with computers... one answer at a time.
You came to the right place. I live in the Windows XP command shell. My (DOS) roots must be showing.
Anyway, the icons may be gone, but the functionality is most certainly still there.
I don't believe that there's a way to actually get the icon back, though it wouldn't surprise me if there were a third party add-on that could add something like it.
But Copy, Paste and a few other old friends are all still there on the system menu. Click on the upper left icon on the command shell window, referred to as the system menu, and along with Move, Size, and so on, you'll see a sub menu called Edit. Click on that, and you'll find Copy, Paste and other clipboard related commands. Here's a screen shot of what I mean:
If you're so inclined, there are good things buried in the Properties item as well that will let you control the look, feel and some of the behavior of the Command Shell.