REXXMEM

The REXXMEM option invokes a REXX EXEC to process the input JCL and update it according to the rules specified in the REXX EXEC.

This option has the following format:

REXXMEM=member-name

member-name: Indicates the REXX program name for update processing. This member name is loaded from the SYSEXEC ddname.

Usage notes:

This option is mutually exclusive with the FORMAT=N option. JCL is always reformatted when the REXX interface is active. FORMAT=B can be used to minimize reformatting.
Include a SYSEXEC ddname either in the JCL (batch run) or in your installations TSO logon PROC/CLIST. If you use EXECUTIL SEARCHDD(YES/NO) under TSO, it determines whether you need SYSEXEC, SYSPROC, or both. See your systems programmer or the IBM manual for a complete explanation of the EXECUTIL command.
The member is loaded from the installations default library. The installation default library is site-specific (the default is the SYSEXEC DD).
When specifying REXXMEM in ISPF panels JCKN01 or JCK0205, you can use standard IBM member pattern characters to display a member list for the data sets that are allocated to your SYSEXEC DD. Use the asterisk (*) for multiple characters and the per cent sign (%) for a single character. Select the member that you want to use from the list and press Enter. The selected member name fills in as the REXXMEM value.