[update][shell] support shell with os

components/shell/shell.c

@@ -1,27 +1,24 @@
-/**
- * @file shell.c
- * @brief
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- * Copyright (c) 2021 Bouffalolab team
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.  The
- * ASF licenses this file to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the
- * License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
- * License for the specific language governing permissions and limitations
- * under the License.
+ * SPDX-License-Identifier: Apache-2.0
  *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2006-04-30     Bernard      the first version for FinSH
+ * 2006-05-08     Bernard      change finsh thread stack to 2048
+ * 2006-06-03     Bernard      add support for skyeye
+ * 2006-09-24     Bernard      remove the code related with hardware
+ * 2010-01-18     Bernard      fix down then up key bug.
+ * 2010-03-19     Bernard      fix backspace issue and fix device read in shell.
+ * 2010-04-01     Bernard      add prompt output when start and remove the empty history
+ * 2011-02-23     Bernard      fix variable section end issue of finsh shell
+ *                             initialization when use GNU GCC compiler.
+ * 2016-11-26     armink       add password authentication
+ * 2018-07-02     aozima       add custom prompt support.
  */
+
 #include "shell.h"
-#include <ctype.h>
 #if defined(SHELL_USING_FS)
 #include "ff.h"
 #endif