return false;
  public static boolean invoke(Interpreter i, CallStack stack, String name)     throws  GrouperShellException  {    try {      GrouperSession  s   = GrouperShell.getSession(i);      Stem            ns  = StemFinder.findByName(s, name);      ns.delete();      return true;    }    catch (InsufficientPrivilegeException eIP)  {      throw new GrouperShellException(eIP);    }    catch (StemDeleteException eNSD)            {      throw new GrouperShellException(eNSD);    }    catch (StemNotFoundException eNSNF)         {      throw new GrouperShellException(eNSNF);    }  } // public static boolean invoke(i, stack, name)