The SHIFT command shifts data in a block, filling the block with zeros, or shortening the block.

DSE SHIFT in the backward direction is restricted to the maximum of OFFSET number of bytes.

In the following command, m must be less than or equal to n:

       
       dse >shift -backward=m -offset=n
       
       
       

This ensures that the shift will not cross block boundaries, either intentionally or unintentionally.

Use extreme caution with this command. The format of the SHIFT command is:

       SH[IFT]  B[ACKWARD]=shift
                F[ORWARD]=shift
                O[FFSET]=offset