IEBGENER (Sequential Copy/Generate Data Set) Program

You can use IEBGENER to perform these tasks:

Create a backup copy of a sequential data set, a member of a partitioned data set or PDSE or a z/OS UNIX System Services (z/OS UNIX) file such as a HFS file.
Produce a partitioned data set or PDSE, or a member of a partitioned data set or PDSE, from a sequential data set or a z/OS UNIX file.
Expand an existing partitioned data set or PDSE by creating partitioned members and merging them into the existing data set.
Produce an edited sequential or partitioned data set or PDSE.
Manipulate data sets containing double-byte character set data.
Print sequential data sets, members of partitioned data sets or PDSEs or z/OS UNIX files.
Reblock or change the logical record length of a data set.
Copy user labels on sequential output data sets.
Supply editing facilities and exits for your routines that process labels, manipulate input data, create keys, and handle permanent input/output errors.

Recommendation: If you have the DFSORT product installed, you should be using ICEGENER as an alternative to IEBGENER when making an unedited copy of a data set or member. It may already be installed in your system under the name IEBGENER. It generally gives better performance.

Related reading :

For information about the linkage conventions for user exit routines, see Specifying User Exits with Utility Programs.
For information about user labels on sequential output data sets, see Processing User Labels.