pwd equivalent command

[Bryan W. Lepore]

is there a "pwd" equivalent in emacs that doesn't require opening up a new
shell or using the mouse, preferably showing the result in the mode line?

the best i can figure to use is "C-x d" to start to go to a new directory,
and then quit it with "C-g" but that starts to get annoying if you're 
jumping around a lot.

thanks

-bryan