#!/bin/bash

for i in $(find|grep -v ".svn"); do
  fname=$(basename $i|grep "^[0-9]\+[^_]*$";)
  if [ -n "$fname" ]; then
    fname=$(echo $fname | sed -e "s/^\([0-9]\+\)\([^_]*\)$/\1_\2/")
    fname="$(dirname $i)/$fname"
    svn mv $i $fname

  fi
done