Working locally with CVS

I've recently discovered that there is a package of tools thought to work locally in the working directory of a developer using CVS. As the creators say (and I had figured it out too), it is possible to do some work with the information locally available.

The tools are:

You can install these tools in any debian system doing:

sudo apt-get install cvstools

I reached this information when reading the different methods of checkout available for CVS in Buildbot :)