rm -rf repo wc
svnadmin create repo
svn co file://`pwd`/repo wc
cd wc
svn mkdir trunk
echo Hello World > trunk/sample.txt
svn add trunk/sample.txt
svn commit -m ""
svn cp trunk branch
svn commit -m ""
svn rm branch/sample.txt
svn commit -m ""
svn merge -r2:3 branch trunk
svn revert -R .
echo Local mods > trunk/sample.txt
svn merge -r2:3 branch trunk
svn commit -m ""