| .. SPDX-License-Identifier: GPL-2.0+: | |
| cat command | |
| =============== | |
| Synopsis | |
| -------- | |
| :: | |
| cat <interface> <dev[:part]> <file> | |
| Description | |
| ----------- | |
| The cat command prints the file content 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: | |
| :: | |
| => cat mmc 0:1 hello | |
| hello world | |
| => | |
| Configuration | |
| ------------- | |
| 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. |