HP NonStop RDF, Руководство по управлению

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In addition, this element is included only if applicable:
• Output Displayed: Only two RDFSCAN commands (LIST and SCAN) produce output,
although others influence its content and destination.
For information about the other elements, see “Command Description Elements” in Chapter 8
(page 187) .
Except for the LOG and NOLOG commands, you can abbreviate the command name by entering
only the first character (such as L for LIST) or any number of the leading characters (such as DIS
for DISPLAY). You can use either uppercase or lowercase letters.
As in earlier chapters, the boldface text in the examples represents characters you enter in response
to messages that prompt you for input.
Descriptions of all RDFSCAN commands follow in alphabetical order.
RDFSCAN Commands
AT
The AT command specifies the record in the intermediate entry-sequenced file at which RDFSCAN
begins the next operation.
AT [record-number]
record-number
identifies the record by its record number. Record number 0 specifies the first record (RDF
message) in the file.
Usage Guidelines
Messages generated by RDF are written to an EMS event log. The AT command specifies the
starting point in the intermediate entry-sequenced file generated by the RDFFLTO filter where
the LIST and SCAN commands, used to examine these messages, begin their operations.
If you enter the AT command without the record number, RDFSCAN prompts you:
Enter record number:
Examples
Suppose that $SYSTEM.SANFRAN.RDFLOG is a file generated by RDFFLTO. To position the
RDFSCAN pointer at record 750 within that file and then list 25 records, first enter AT 750 in
response to the current RDFSCAN prompt:
Enter the RDFSCAN function you want: AT 750
RDFSCAN repositions its pointer and displays this message and prompt:
File: $SYSTEM.SANFRAN.RDFLOG, current record: 750,
last record: 2955
Enter the next RDFSCAN function you want:
Now list the records by entering LIST 25 at the prompt:
Enter the next RDFSCAN function you want: LIST 25
RDFSCAN responds by listing the records. For information about this listing, see “LIST” (page 265) .
DISPLAY
The DISPLAY command enables or disables the display of line (record) numbers in subsequent
RDFSCAN output.
DISPLAY {ON | OFF}
ON
enables the display of record numbers.
262 Entering RDFSCAN Commands