//SORTIN DD DSNAME=INPUT,DISP=SHR
This example shows DD statement parameters that define a previously
cataloged input data set:
- DSNAME
- causes the system to search the catalog for a data set with
the name INPUT. When the data set is found, it is associated with
the ddname SORTIN. The control program obtains the unit assignment
and volume serial number from the catalog and, if the volume is not
already mounted, writes a mounting message to the operator.
- DISP
- indicates that the data set existed before this job step, that
it should be kept after this job step, and that it can be used concurrently
by several jobs (SHR). None of the jobs should change the data set
in any way.