Recurse a shell command across 2 directories

recurse.sh

function recurse() {
  if [ "$#" -lt 3 ]; then
      echo "Syntax: recurse dir1 dir2 commandline...";
  else
      dir1="$1"
      shift
      dir2="$1"
      shift
      find $dir1 -type f -exec $@  {} $dir2/{} \;
  fi
}