.. _uboot-cmd-ref-short:

U-Boot Commands
===============

A full an complete command line reference is available at the

`The U-Boot Documentation <https://u-boot.readthedocs.io>`_

specifically `here`_ (Use U-Boot -> Shell commands).


Subsequently are some of the most important commands of U‑Boot being described.

Using the ``help`` (or ``?``) command will print a list of all available commands for the system, also
``help <command>`` (or ``? <command>``) will show the specifics for each single command.

All commands can be abbreviated to the shortest string that uniquely identifies each command or sub‑command, e.g.:

* ``pr`` for ``printenv``

* ``res`` for ``reset``

Furthermore, U‑Boot will auto-complete the commands by pressing the
``TAB`` key. Respectively it will complete to the least common
denominator and show a list of commands, while allowing to
auto-complete step-by-step.

The features of U‑Boot are configurable and can depend on the CoM
series basis, such that some TX Series CoM might present the user
different availability of commands. Ka‑Ro strives to configure U‑Boot
to the highest possible commonalities. Please also use the

``help`` (or ``?``) command to find out more about your configuration's commands.

Also note that above described feature-set is subject to change and defined at compile time.


.. note::

   Most U‑Boot commands expect numbers to be entered in hexadecimal
   input format (exceptions where noted). A leading ``0x`` prefix is
   not required.


.. _here: https://u-boot.readthedocs.io/en/latest/usage/index.html#shell-commands