copy a folder with replace?

[Littlefield, tyler]

Hello list,
I was wondering if there is a way to do this.
I've got two folders, both called x.
each has different files, and at times, the same files.
Is there a way to get linux to copy the new files over to the specified folder?
It tried, and gave me a bunch of blank folders once, and tried again, and I don't know what the problem is.
Thanks,
Tyler Littlefield
Shaned.net customer support and server administrator.
Unlimited horizons head coder.
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