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 '{}' \;