Set your CVSROOT variable environment in your .bashrc :
$ export CVSROOT=:ext:@:/path/to/cvs/repository
To import an existing project to the CVS server :
$ cd files/of/your/project
$ cvs import -m " - Initial version."
init devel
To upload files to the CVS server :
$ cvs commit -m "Comments"
To retrieve files from the CVS server :
$ cvs checkout
To update your files from the CVS server :
$ cvs update
To get information of a file :
$ cvs log
To compare your file from his copy on the CVS :
$ cvs diff