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The implementation roughly follows the POSIX specification for rename() [1]. The ordering of operations attempting to minimize the chance for data loss in unexpected circumstances. The 'mv' command was implemented as a front end for the rename operation as that is what most users are likely familiar with in terms of behavior. The 'FAT_RENAME' Kconfig option was added to prevent code size increase on size-oriented builds like SPL. [1] https://pubs.opengroup.org/onlinepubs/9799919799/functions/rename.html Signed-off-by: Gabriel Dalimonte <gabriel.dalimonte@gmail.com>
61 lines
1.1 KiB
ReStructuredText
61 lines
1.1 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+:
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.. index::
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single: mv (command)
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mv command
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==========
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Synopsis
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--------
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::
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mv <interface> [<dev[:part]>] <old_path> <new_path>
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Description
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-----------
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The mv command renames/moves a file or directory within a filesystem.
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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 0 (whole device)
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old_path
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existing path to file/directory
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new_path
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new path/name for the rename/move
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Example
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-------
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# Rename file 'foo' in directory 'dir' to 'bar'
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mv mmc 0:0 dir/foo dir/bar
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# Move file 'f' from directory 'foo' to existing directory 'bar' renaming
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# 'f' to 'g'
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mv mmc 0:0 foo/f bar/g
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# Move directory 'abc' in directory 'dir1' into existing directory 'dir2'
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mv mmc 0:0 dir1/abc dir2
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Configuration
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-------------
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The mv command is only available if CONFIG_CMD_FS_GENERIC=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 was successfully
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renamed/moved.
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If an error occurs, the return value $? is set to 1 (false).
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