The RANGE command finds all blocks in the database whose first key falls in the specified range of keys. The RANGE command may take a very long time unless the range specified by /FROM and /TO is small. Use FIND /KEY and/or FIND /KEY /EXHAUSTIVE first to quickly determine whether the key appears in the index tree.

The format of the RANGE command is:

        RA[NGE] /F[ROM]=block-number
                /T[O]=block-number
                /I[NDEX]
                /LOS[T]
                /[NO]C[RIT]
                /[NO]BU[SY]
                /S[TAR]
                /LOW[ER]=key
                /U[PPER]=key