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+.. SPDX-License-Identifier: GPL-2.0+
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+
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+size command
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+============
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+
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+Synopsis
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+--------
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+
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+::
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+
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+ size <interface> <dev[:part]> <filename>
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+
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+Description
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+-----------
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+
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+The size command determines the size of a file and sets the environment variable
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+filesize to this value. If filename points to a directory, the value is set to
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+zero.
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+
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+If the command fails, the filesize environment variable is not changed.
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+
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+dev
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+ device number
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+
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+part
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+ partition number, defaults to 1
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+
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+filename
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+ path to file
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+
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+Configuration
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+-------------
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+
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+The size command is only available if CONFIG_CMD_FS_GENERIC=y.
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+
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+Return value
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+------------
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+
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+The return value $? is set to 0 (true) if the command succeded and to 1 (false)
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+otherwise.
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