IEBGENER

It is the most commonly used utility. Its primary purpose is to make copies of sequential files, but it is often used to create sequential files or partitioned datasets

The following is the sample of a JCL statement to execute this utility program.

//GP4ABC JOB (RR, 1235,,,,8,,U),’MR. XYZ’,CLASS=S,

// MSGCLASS=G,MSGLEVEL=1,NOTIFY=GP4ABC

//*

//***********************************************************

//* THIS PROGRAM COPIES ONE FILE TO ANOTHER.

//***********************************************************

//STEP1 EXEC PGM=IEBGENER

//SYSPRINT DD SYSOUT=*

//SYSUT1 DD DSN=TSGBAXC.SACRED.DATA,DISP=SHR

//SYSUT2 DD DSN=TSGBAXC.NEWCOPY.DATA,

// DISP=(,CATLG,DELETE),

// UNIT=DISK,

// SPACE=(CYL,(20,2),RLSE),

// DCB=(RECFM=FB,LRECL=80,BLKSIZE=6160)

//SYSIN DD DUMMY

In this example, the DSN stated against DDNAME SYSUT1 is copied to a new DSN stated against DDNAME SYSUT2. This means SYSUT1 is the input and SYSUT2 is the output. SYSIN DD DUMMY states that no other input(sysin) parameter was used in this process. DUMMY specifies that while input file was getting copied to the output file, no further manipulation was made to the copying process. This follows the same pattern when a programmer wants to suppress a particular input or output dataset by using the DDNAME DD DUMMY in the execution jcl