svn update --non-interactive
Subversion documentation can sometimes seem quite scant. If you want to use command line svn to update a series of folders, automatically merging each file that needs to be, use
svn update --non-interactive
This will keep away the prompts: "Conflict discovered in "
Instead some of the updated files might/will get some of the markings as below but your compiler should make that obvious later
<<<<<<< .mine
=======
>>>>>>> .r191289