How to backup vb 2.0 database EXCEPT a table

[Sharg]

Hi,
anticipating 2.0, I would like to know how to backup my database EXCLUDING the attachement table.

Here is what cron currently runs:

mysqldump -uroot -pmypass mydatabase >/var/www/backup/currentdb.txt

so how should I modify this command to backup the database exept the attachements table ?

Thanks,