Remote directory <-> local plain file
ren a a.bkup uniqname
svn co -N svn://localhost/yugos/a
svn delete a
svn add a.bkup
svn -m msg commit a a.bkup
svn move a.bkup a
svn -m msg commit a a.bkup

Remote plain file <-> local directory
ren a a.bkup
svn delete a
svn add a.bkup
svn -m msg commit a a.bkup
svn move a.bkup a
svn -m msg commit a a.bkup




