synchronizing local with repository

[Nathan Coast]

Hi,

I'm trying to automate the following:

Commit all modified files.
Add all files present locally but missing from repository.
Merge all files (if possible) that are edited locally and on repository.

I'm trying to eliminate as much human error as possible due to 
developers forgetting to keep the repository consistent with their local 
environments.

I'm assuming that this is possible with cvs.  Is it possible to achieve 
this with existing cvs commands or will I have to add intermediary 
stages e.g. generate a list of all files requiring adding and then 
iterate over the list adding each one.

Thanks
Nathan