Aug 012010
http://svnbook.red-bean.com/en/1.0/ch04s02.html
Answer:
In SVN, if you want to create a branch, you can use the following command.
# svn copy http://example.com/svn/repos/demo/trunk \
http://example.com/svn/repos/demo/branches/my-test-branch \
-m "My test branch for the 'demo' project."
Committed revision 125.
[...] you have created a branch in SVN, which is at revision 125. Now the trunk's head revision is increased to 150, and you want to merge [...]