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| author | Roger Knecht <rknecht@pm.me> | 2022-09-03 16:15:04 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2022-10-11 22:40:48 +0300 |
| commit | 23c0df6e7cd3f220a81151b662f0280bba0054b9 (patch) | |
| tree | 15bac492af33d58a7b244c914cd1714a7ffc3964 /doc/usage | |
| parent | 690a1d694899c55c7cc6a168c54984f765ff761e (diff) | |
| download | u-boot-23c0df6e7cd3f220a81151b662f0280bba0054b9.tar.xz | |
cmd: xxd: add new command
Add xxd command to print file content as hexdump to standard out
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Roger Knecht <rknecht@pm.me>
Diffstat (limited to 'doc/usage')
| -rw-r--r-- | doc/usage/cmd/xxd.rst | 50 | ||||
| -rw-r--r-- | doc/usage/index.rst | 1 |
2 files changed, 51 insertions, 0 deletions
diff --git a/doc/usage/cmd/xxd.rst b/doc/usage/cmd/xxd.rst new file mode 100644 index 0000000000..0de1223dce --- /dev/null +++ b/doc/usage/cmd/xxd.rst @@ -0,0 +1,50 @@ +.. SPDX-License-Identifier: GPL-2.0+: + +xxd command +=============== + +Synopsis +-------- + +:: + + xxd <interface> <dev[:part]> <file> + +Description +----------- + +The xxd command prints the file content as hexdump to standard out. + +interface + interface for accessing the block device (mmc, sata, scsi, usb, ....) + +dev + device number + +part + partition number, defaults to 1 + +file + path to file + +Example +------- + +Here is the output for a example text file: + +:: + + => xxd mmc 0:1 hello + 00000000: 68 65 6c 6c 6f 20 77 6f 72 6c 64 0a 00 01 02 03 hello world..... + 00000010: 04 05 .. + => + +Configuration +------------- + +The xxd command is only available if CONFIG_CMD_XXD=y. + +Return value +------------ + +The return value $? is set to 0 (true) if the file is readable, otherwise it returns a non-zero error code. diff --git a/doc/usage/index.rst b/doc/usage/index.rst index a05aa42485..64a265879d 100644 --- a/doc/usage/index.rst +++ b/doc/usage/index.rst @@ -72,6 +72,7 @@ Shell commands cmd/true cmd/ums cmd/wdt + cmd/xxd Booting OS ---------- |