identifies an external
file. Under z/OS, it can be a valid ddname, a physical filename,
or the name of a file stored in the directory structure of the UNIX
file system. The ddname must have been previously associated with
an external file using either a TSO ALLOCATE command or a JCL DD statement.
Details
Use the ALTPRINT= option
to capture procedure output for printing.
The NOALTPRINT option
causes any previous ALTPRINT specifications to be ignored.