Use a REXX exec in place of /etc/init (STARTUP_EXEC)

STARTUP_EXEC names a REXX exec that does application environment initialization for z/OS UNIX. This statement is optional and rarely used. If it is specified, the BPXOINIT process will not run /etc/init. The startup exec is typically used by an installation that does not have an HFS, but is using a TFS for a file system. It can be used to populate the TFS with any directories and files that are needed. It is specified as: STARTUP_EXEC('Dsname(Memname)',SysoutClass) where:

Specifying SysoutClass is optional.

Default: There is no default value for STARTUP_EXEC. Most installations use an HFS.