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PJL
3-90
LREADFILE Command
Use this command to read data from a file on a storage device.
Syntax:
@PJL LREADFILE DEVICE = filedevice FILENAME = "fname"
[START = location] [LENGTH = bytecount][<CR>]<LF>
Response Syntax:
@PJL LREADFILE DEVICE = filedevice FILENAME = "fname"
START = location LENGTH = bytecount<CR><LF>
<requested data from the file>@PJL END DATA<CR><LF><FF>
Notes:
• The file must be closed using the LCLOSEFILE command once all operations
are complete.
• The command is ignored if the file doesn’t exist on the device or has not
already been opened with LOPENFILE with an
accesstype of RO, RW, or AP.
• If the START = location parameter is omitted, location 0 (beginning of the
file) is assumed.
• If a START location is provided but it is greater than the file size, the response
will contain no file data.
• If the LENGTH parameter is omitted, bytecount is assumed to be equal to
the entire file beginning at the START location.
• If the LENGTH is greater than the file size on a LREADFILE command, it is
assumed to be the entire file beginning at the START location.