PJL
3-82
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 does not 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.
