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690a1d6948
Add cat command to print file content to standard out Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Roger Knecht <rknecht@pm.me>
49 lines
723 B
ReStructuredText
49 lines
723 B
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+:
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cat command
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===============
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Synopsis
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--------
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::
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cat <interface> <dev[:part]> <file>
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Description
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-----------
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The cat command prints the file content to standard out.
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interface
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interface for accessing the block device (mmc, sata, scsi, usb, ....)
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dev
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device number
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part
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partition number, defaults to 1
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file
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path to file
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Example
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-------
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Here is the output for a example text file:
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::
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=> cat mmc 0:1 hello
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hello world
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=>
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Configuration
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-------------
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The cat command is only available if CONFIG_CMD_CAT=y.
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Return value
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------------
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The return value $? is set to 0 (true) if the file is readable, otherwise it returns a non-zero error code.
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