Update?

[King Kong]

Hi
I wanted to use cvs update to see which files have been modified in
the repository since last update.
I use the following commands to achieve this in a shell script


Now I think this is not suitable (or my providers work less than they
should).
The goal is to find out how many files have been modified since last
update.
How can I achieve this?
Are there any ready scripts or which cvs command do I have to use?
I thought update is the right thing.
Kay