The T-BCK command is used to move the tape or floppy disk backward for a specified number of records or to a previous End-Of-File mark. On floppy drives, this operation is possible in RAW-OFF mode.
Format
T-BCK [record] |
Parameter(s)
record |
Number of tape or floppy disk records you move back over. The maximum is 32,767. If a number is not specified, T-BCK backspaces to the previous End-Of-File mark or to the load point. |
If an End-Of-File is encountered before the specified number of records are backspaced over, or if record is not specified, the tape or floppy disk is positioned before the End-Of-File mark. A T-FWD must be issued to position the tape or floppy disk after the End-Of-File mark before reading the next record.
NOTE |
T-BCK is not supported on 1/4-inch tape drives. |
>T-EOD BLOCK SIZE: 16896 [92] END OF RECORDED DATA - 1 FILE(S) |
Once the tape is positioned at the EOD, you can dump another file to tape.
The following example dumps the CUSTOMERS file:
>T-DUMP CUSTOMERS
BLOCK SIZE: 16896 1 AEDWA51BLA 2 SPIRS112A 3 AJOHN760JE 4 HJENK1222M 5 AMEAD251BL 6 JBROW129BO 7 BLEAR34TRE 8 JPEER89RIA 9 HJOHN455OT 10 JBOHA126TR 11 JBUCK26STO 12 HHIGG5425T 13 DEDGE338BR 14 AORLA55VEN 15 MASH912AE 16 RPIER123WE 17 BLAMP344TR 18 JMASO226RO 18 ITEMS DUMPED. |
See Also