svn Branching, shelving and tagging in Apache Subversion Creating a branch through a working copy
Example
When you interact with the remote central repository using your private local workspace -- the working copy -- you can use repository-relative URL instead of direct URL to URL copy to create a new branch:
svn copy "^/MyProject/trunk" "^/MyProject/branches/MyNewBranch" -m "Creating a new branch"
