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NULL

The NULL control statement is used to write a null SYSOUT group to the output tape. For example, assume an I/O error exists on an archival tape causing the relative positions of the SYSOUT groups on the tape to be thrown off. The NULL statement can be used to insert a null SYSOUT group to restore correct positioning.

Syntax:

NULL position-number[-position-number]

where

position-number

Specifies the desired tape file position, from 1 to 99999999, of the null group. The position can be only one position, or it can be a range of positions (for example, NULL 1–2048).