migrating the build script from CVS to Maven

Hi all

We were using CVS as the code repository. But now we need to migrate to SVN
My existing build script has cases where cvs commands - update/rtag/commit,
are fired.
The current build script gives following options to the user:
1. version the build result, version newly/select from a list of versions
from the cvs.
2. if 1. is entered Y then enter the version number, timestamp taken if its
left blank
3. Create a new branch, select a branch from those i nthe cvs, to take build
on
4. commit the build result
5. identify whther its a nightly build.

I want to modify the scripts now to use them for SVN. The cvs terms version,
branch, head are referred by what in SVN?
are there all commands in svn which will help me map the above 5 points into
my build script?

-- 
Regards,
Niranjan Deshpande
"Shut yourself from the world and create the reality you want"