Import new project:
$ svn import -m "Initial" project_folder https://domain.com/svn/project_folder
Checkout project with .svn files
$ svn checkout https://domain.com/svn/project_folder destination_folder
Export project without .svn files
$ svn export https://domain.com/svn/project_folder destination_folder
Delete folder
$ svn delete -m "Deleting project dir" https://domain.com/svn/project_folder/destination_folder
Find .svn files and delete them
$ find path_to_folder -name .svn -exec rm -R '{}' \;