.. _ExerciseSblShellCli:

Exercise \\- \ SBL Shell/CLI
------------------------------

.. note::
  **In this exercise, we'll learn how to execute SBL Shell Commands.**
  
  * Used ``help<ENTER>`` to list the available commands


You can execute |SPN| with the following steps:

1. Working on Command Prompt

2. Execute cmd on Shell by type-in:

  +------------+------------------------------------------------+
  |  **acpi**  | \\- \ Display ACPI table data                  |
  +------------+------------------------------------------------+
  |  **boot**  | \\- \ Print or modify the OS boot option list  |
  +------------+------------------------------------------------+
  |  **cdata** | \\- \ Display configuration data               |
  +------------+------------------------------------------------+
  |  **cls**   | \\- \ Clear console                            |
  +------------+------------------------------------------------+
  |  **cpuid** | \\- \ Read CPU specific information            |
  +------------+------------------------------------------------+
  |  **dmesg** | \\- \ Print messages stored in boot log buffer |
  +------------+------------------------------------------------+
  |  **exit**  | \\- \ Exit the shell                           |
  +------------+------------------------------------------------+
  |  **fs**    | \\- \ filesystem access command                |
  +------------+------------------------------------------------+
  |  **help**  | \\- \ List supported commands                  |
  +------------+------------------------------------------------+
  |  **hob**   | \\- \ List HOBs                                |
  +------------+------------------------------------------------+
  |  **mm**   | \\- \ Read or write system memory               |
  +------------+------------------------------------------------+
  |  **mmap**  | \\- \ Display memory map                       |
  +------------+------------------------------------------------+
  |  **mmcdll**| \\- \ Tune or print MMC DLL data               |
  +------------+------------------------------------------------+
  |  **msr**   | \\- \ Read or write model specific registers   |
  +------------+------------------------------------------------+
  |  **mtrr**  | \\- \ Display current MTRR configuration       |
  +------------+------------------------------------------------+
  |  **pci**   | \\- \ Display PCI devices (example)            |
  +------------+------------------------------------------------+
  |  **perf**  | \\- \ Display performance data                 |
  +------------+------------------------------------------------+
  |  **reset** | \\- \ Reset the system                         |
  +------------+------------------------------------------------+
  |  **ucode** | \\- \ Display microcode version                |
  +------------+------------------------------------------------+
  |  **usbdev**| \\- \ Display USB devices                      |
  +------------+------------------------------------------------+




**Example**::

    pci           - Display PCI devices 

.. image:: /images/ex3.jpg
   :alt: Compile completed
   :align: center


.. tip::
   Exit Shell by close QEMU