cd ${BRANCH}_svn
# Get the svnmerge script
curl http://svn.apache.org/repos/asf/subversion/trunk/contrib/client-side/svnmerge/svnmerge.py -o $HOME/bin/svnmerge.pychmod +x $HOME/bin/svnmerge.py
#Once you have this script, the merging from the main line to your private branch must be initialised by typing, from within the checked out copy of your branch