Support environment Input/Output (I/O) appears in the following forms:
- Command and statement input (default = SYSIN/stdin)
- Accept command input from file
- Command and statement output (default = SYSPRINT/stdout)
- Display command output (default = SYSPRINT/stdout)
- Error output (default = SYSPRINT/stdout)
For IBM statement input, the default is initially the user-provided invocation parameter (JCL PARM), if specified. After all commands and nested files in the parameter are processed, the default is SYSIN.