-------------
The command is available if CONFIG_CMD_ARMFFA=y and CONFIG_ARM_FFA_TRANSPORT=y.
-
-Return value
-------------
-
-The return value $? is 0 (true) on success, 1 (false) on failure.
-------------
The bdinfo command is available if CONFIG_CMD_BDI=y.
-
-Return code
------------
-
-The return code $? is 0 (true).
-------------
The bind command is only available if CONFIG_CMD_BIND=y.
-
-Return code
------------
-
-The return code $? is 0 (true) on success and 1 (false) on failure.
-------------
The blkcache command is only available if CONFIG_CMD_BLOCK_CACHE=y.
-
-Return code
------------
-
-If the command succeeds, the return code $? is set 0 (true). In case of an
-error the return code is set to 1 (false).
-------------
The cat command is only available if CONFIG_CMD_CAT=y.
-
-Return value
-------------
-
-The return value $? is set to 0 (true) if the file is readable, otherwise it returns a non-zero error code.
modern
=> cli set old
Want to set current parser to old, but its code was not compiled!
-
-Return value
-------------
-
-The return value $? indicates whether the command succeeded.
-------------
The cls command is only available if CONFIG_CMD_CLS=y.
-
-Return value
-------------
-
-The return value $? is 0 (true) on success and 1 (false) on failure.
The cp command is available if CONFIG_CMD_MEMORY=y. Support for 64 bit words
(cp.q) is only available on 64-bit targets. Copying to flash depends on
CONFIG_MTD_NOR_FLASH=y.
-
-Return value
-------------
-
-The return value $? is set to 0 (true) if the command was successfully,
-1 (false) otherwise.
-------------
The cpu command is available if CONFIG_CMD_CPU=y.
-
-Return code
------------
-
-The return value $? is set to 0 (true) if the command is successful,
-1 (false) otherwise.
The cpuid command is only available on x86.
-Return value
-------------
-
-The return value $? is 0 (true).
-
Example
-------
The dmareset command is only available if CONFIG_CMD_C5_PL330_DMA=y in
"Shell scripting commands".
-
-Return value
-------------
-
-If the command succeeds, the return value $? is set to 0 (true).
-If an error occurs, the return value $? is set to 1 (false).
The ebtupdate command is only available if CONFIG_CMD_EBTUPDATE=y and
only on Tegra 2 and Tegra 3 configurations.
-
-Return value
-------------
-
-The return value $? is set to 0 (true) if everything went successfully. If an
-error occurs, the return value $? is set to 1 (false).
-------------
The fatinfo command is only available if CONFIG_CMD_FAT=y.
-
-Return value
-------------
-
-The return value $? is set to 0 (true) if the partition is a FAT partition.
-Otherwise it is set to 1 (false).
Working FDT set to 10000
=> md 10000 4
00010000: edfe0dd0 00f00000 78000000 7c270000 ...........x..'|
-
-Return value
-------------
-
-The return value $? indicates whether the command succeeded.
-------------
The command is only available if CONFIG_CONSOLE_TRUETYPE=y.
-
-Return value
-------------
-
-The return value $? is 0 (true) if the command completes.
-The return value is 1 (false) if the command fails.
The fuse commands are available if CONFIG_CMD_FUSE=y.
The fuse writebuff command is available if CONFIG_CMD_FUSE_WRITEBUFF=y.
-
-Return code
------------
-
-The return value $? is set to 0 (true) if the command is successful,
-1 (false) otherwise.
The *gpio* command is only available if CONFIG_CMD_GPIO=y.
The *gpio read* command is only available if CONFIG_CMD_GPIO_READ=y.
-
-Return value
-------------
-
-If the command succeds the return value $? is set to 0. If an error occurs, the
-return value $? is set to 1.
=> host info
dev blocks label path
1 2048 fat 1MB.fat32.img
-
-
-Return value
-------------
-
-The return value $? indicates whether the command succeeded.
The ``i3c`` command is only available if CONFIG_CMD_I3C=y.
-Return value
-------------
-
-If the command succeeds, the return value ``$?`` is set to 0. If an error
-occurs, the return value ``$?`` is set to 1.
-
Note
----
The imxtract command is only available if CONFIG_CMD_XIMG=y. Support for FIT
images requires CONFIG_FIT=y. Support for legacy U-Boot images requires
CONFIG_LEGACY_IMAGE_FORMAT=y.
-
-Return value
-------------
-
-On success the return value $? of the command is 0 (true). On failure the
-return value is 1 (false).
-------------
The command is only available if CONFIG_CMD_LOADB=y.
-
-Return value
-------------
-
-The return value $? is 0 (true) on success, 1 (false) on error.
-------------
The command is only available if CONFIG_CMD_LOADM=y.
-
-Return value
-------------
-
-The return value $? is set 0 (true) if the loading is succefull, and
-is set to 1 (false) in case of error.
-
The command is only available if CONFIG_CMD_LOADS=y. The parameter to set the
baud rate is only available if CONFIG_SYS_LOADS_BAUD_CHANGE=y
-
-Return value
-------------
-
-The return value $? is 0 (true) on success, 1 (false) otherwise.
Initial timeout in seconds while waiting for transfer is configured by
config option CMD_LOADXY_TIMEOUT or by env variable $loadxy_timeout.
Setting it to 0 means infinite timeout.
-
-Return value
-------------
-
-The return value $? is 0 (true) on success, 1 (false) otherwise.
Initial timeout in seconds while waiting for transfer is configured by
config option CMD_LOADXY_TIMEOUT or by env variable $loadxy_timeout.
Setting it to 0 means infinite timeout.
-
-Return value
-------------
-
-The return value $? is 0 (true) on success, 1 (false) otherwise.
The msr command is only available on x86.
-Return value
-------------
-
-The return value $? is 0 (true).
-
Example
-------
-------------
The mtest command is enabled by CONFIG_CMD_MEMTEST=y.
-
-Return value
-------------
-
-The return value $? is 0 (true) if the command succeeds, 1 (false) otherwise.
-------------
The optee command is enabled by CONFIG_OPTEE=y and CONFIG_CMD_OPTEE=y.
-
-Return value
-------------
-
-The return value $? is 0 (true) if the command succeeds, 1 (false) otherwise.
type: ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
guid: a0891d7e-b930-4513-94da-f629dbd637b2
=>
-
-Return value
-------------
-
-The return value $? is set to 0 (true) if the command succededd. If an
-error occurs, the return value $? is set to 1 (false).
Usage:
pause [prompt] - Wait until users presses any key. [prompt] can be used to customize the message.
-
-Return value
-------------
-
-The return value $? is always set to 0 (true), unless invoked in an invalid
-manner.
-------------
The pinmux command is only available if CONFIG_CMD_PINMUX=y.
-
-Return value
-------------
-
-The return value $? is set to 0 (true) if the command succeded and to 1 (false)
-otherwise.
-------------
The ``pwm`` command is only available if CONFIG_CMD_PWM=y.
-
-Return value
-------------
-
-If the command succeeds, the return value ``$?`` is set to 0. If an error occurs, the
-return value ``$?`` is set to 1.
The command is only available if CONFIG_CMD_SAVES=y. The parameter to set the
baud rate is only available if CONFIG_SYS_LOADS_BAUD_CHANGE=y
-
-Return value
-------------
-
-The return value $? is 0 (true) on success, 1 (false) otherwise.
The scmi command is only available if CONFIG_CMD_SCMI=y.
Default n because this command is mainly for debug purpose.
-Return value
-------------
-
-The return value ($?) is set to 0 if the operation succeeded,
-1 if the operation failed or -1 if the operation failed due to
-a syntax error.
-
.. _`SCMI specification`: https://developer.arm.com/documentation/den0056/e/?lang=en
* The *setexpr gsub* and *setexpr sub* sub-commands are only available
if CONFIG_REGEX=y. For an overview of the supported regex syntax,
see :doc:`test`.
-
-Return value
-------------
-
-The return value $? is set to 0 (true) if the operation was successful.
-
-If an error occurs, the return value $? is set to 1 (false).
-------------
The size command is only available if CONFIG_CMD_FS_GENERIC=y.
-
-Return value
-------------
-
-The return value $? is set to 0 (true) if the command succeded and to 1 (false)
-otherwise.
-------------
The command is only available if CONFIG_CMD_SMBIOS=y.
-
-Return value
-------------
-
-The return value $? is 0 (true) on success, 1 (false) otherwise.
-------------
The sound command is enabled by CONFIG_CMD_SOUND=y.
-
-Return value
-------------
-
-The return value $? is 0 (true) if the command succeeds, 1 (false) otherwise.
The legacy U-Boot image file format requires CONFIG_LEGACY_IMAGE_FORMAT=y.
On hardened systems support for the legacy U-Boot image format should be
disabled as these images cannot be signed and verified.
-
-Return value
-------------
-
-If the scripts is executed successfully, the return value $? is 0 (true).
-Otherwise it is 1 (false).
-------------
The *temperature* command is only available if CONFIG_CMD_TEMPERATURE=y.
-
-Return value
-------------
-
-The return value $? is set to 0 (true) if the command succeeded and to 1 (false)
-otherwise.
If CONFIG_TFTP_TSIZE=y, the progress bar is limited to 50 '#' characters.
Otherwise an '#' is written per UDP package which may decrease performance.
-
-Return value
-------------
-
-The return value $? is 0 (true) on success and 1 (false) otherwise.
-------------
The unbind command is only available if CONFIG_CMD_BIND=y.
-
-Return code
------------
-
-The return code $? is 0 (true) on success and 1 (false) on failure.
-------------
The command is only available if CONFIG_CMD_WDT=y.
-
-Return value
-------------
-
-The return value $? is 0 if the command succeeds, 1 upon failure.
TCP Selective Acknowledgments in the legacy network stack can be enabled via
CONFIG_PROT_TCP_SACK=y. This will improve the download speed. Selective
Acknowledgments are enabled by default with lwIP.
-
-Return value
-------------
-
-The return value $? is 0 (true) on success and 1 (false) otherwise.
command will cause "run" to terminate, i. e. the remaining
variables are not executed.
+#. The variable ``$?`` will be set as the return value of any command. The
+ possible values are 0 on success or 1 on any error e. g. invalid syntax or
+ failure of the command. Any exceptions to this are documented by the
+ specific command, e.g. the :doc:`for command <cmd/for>` sets ``$?`` based on
+ the last command run within the loop.
+
Representing numbers
--------------------
projects / thirdparty / u-boot.git / commitdiff
