[p4] Diff on same dir in two depots

[1800 tbsfunny]

Hi,

I recenly performed perforce migration from one depot to another. The
migration didnt go that well and I had to import certain files myself.

What is the best way to import Revision history when performing migration?

Also how can diff the same directory in the two depots to check if they are
identical.

Thanks,
Jed