Filtering by data set characteristics

The BY parameter can filter for the following data set characteristics:

Keyword: Criteria
ALLOC: Allocation type (cylinder, track, block, absolute track, or movable)
CATLG: Whether a data set is cataloged or not (using the standard catalog search order)
CREDT: Creation date (absolute or relative)
DATACLAS: Data class for SMS
DSCHA: Whether the data-set-changed indicator is on
DSORG: Data set organization (SAM, PAM, PDS, PDSE, BDAM, EXCP, HFS, ISAM, VSAM, or zFS)
EXPDT: Expiration date (absolute or relative)
EXTNT: Number of extents
FSIZE: Data set size (number of allocated or used tracks)
MGMTCLAS: Management class for SMS
MULTI: Whether the VTOC shows that the data set is single-volume or multivolume (allocated single-volume data sets that have never been opened and are not cataloged may be selected as multivolume).
REFDT: Last-referenced date (absolute or relative)
STORCLAS: Storage class for SMS

You can use any of the following operators with the BY keyword:

Operator: Meaning
EQ or =: Equal to
LT or <: Less than
LE or <=: Less than or equal to
GT or >: Greater than
GE or >=: Greater than or equal to
NE or ¬=: Not equal to

When you specify multiple arguments for an NE operation, DFSMSdss selects only those data sets not matching any of the arguments. When you specify multiple arguments for an EQ operation, DFSMSdss selects those data sets matching any of the arguments.