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3.4.4.1.4 SYSTSIN DD Statement

 






   The SYSTSIN DD statement is used to specify that the data to follow 
   consists of executable commands and/or subcommands. For example, to 
   indicate to the system that all data following this statement is to be 
   used as input, until the system encounters an input delimiter, such as the 
   characters /* or the DLM operand, specify: 




     //SYSTSIN  DD  * 





   If any of the input statements start with the characters //, use the DD 
   DATA statement instead. 



   To indicate to the system that all data following this statement is to be 
   used as input, including statements that start with the characters //, 
   until an input delimiter (/* or DLM) is found, specify: 




     //SYSTSIN  DD  DATA 





   To indicate to the system that all the input data can be found in data set 
   PREFIX.INPUT.DATA, specify: 




     //SYSTSIN  DD  DSNAME=PREFIX.INPUT.DATA 





   The SYSTSIN and SYSTSPRT DD statements can refer to a sequential data set 
   or a member of a partitioned data set. 




 | It is recommended that the SYSTSIN DD be defined as a fixed block format 

 | data set, with an LRECL of 80. 




 | If SYSTSIN is a fixed length data set (FB), the last 8 bytes of the record 

 | will be treated as a sequence number and ignored. 




 | If SYSTSIN is a fixed length data set with ASA control characters (FBA), 

 | the first byte of the record will be treated as a carriage control 

 | character and ignored. 




 | If SYSTSIN is a variable length data set (VB), the first 8 bytes of the 

 | record will be treated as a sequence number and ignored. 




 | If SYSTSIN is a variable length data set with ASA control characters 

 | (VBA), the first 9 bytes of the record will be treated as a sequence 

 | number, followed by a carriage control character and ignored. 



   You cannot refer to concatenated data sets on the SYSTSIN DD statement. 
   Each command or subcommand must begin on a separate statement. 





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