IEFBR14 utility in Real-time mainframe project is also called DO-Nothing. I got a question in an interview. So, this is 100% helpful to you.
It is also called DO-Nothing. Still it does some of the following functions. Exclusively for this blog readers, I am suggesting a book to get more insights.
//step1 exec pgm=IEFBR14 //DD2 DD DSN=test.dd.data1,disp=(NEW,CATLG) // UNIT=SYSDA,SPACE=(CYL,(3,5),RLSE) //DD2 DD DSN=TEST.DD.DATA2,DISP=(OLD,DELETE) // UNIT=SYSDA,SPACE=(CYL,(3,5),RLSE)
- Creates a data set
- If we do not want, we can delete the dataset
- Z/os job scheduler will use this utility to check syntax errors