Valid values: Specify one of three SYMBOLS= values:
JCLONLY
Substitute JCL symbols that have been made available by the EXPORT
statement and JES Symbols dynamically created by the IAZSYMBL JES
symbol service, which is described in z/OS JES Application Programming.
EXECSYS
Substitute symbols as described for JCLONLY. In addition, substitute
system symbols from the system where this job is executing.
CNVTSYS
Substitute symbols as described for JCLONLY. In addition, substitute
system symbols from the system where this job completed JCL conversion.
logging-DDname
Optional parameter that indicates a valid DD name for
the data set to use for logging results of the symbol substitution.
Rules for DD names are described in DDNAME parameter. Note that logging-DDname is ignored if it is
specified on the DD statement which describes a data set that is the
target on the PARMDD keyword (see PARMDD parameter).