18 Using IBM Application Development Tools for z/OS and OS/390
2.1 What can File Manager be used for?
You can use File Manager to display, edit, update, create, copy, compare, print and erase
data. For many of these tasks, you can use templates to enhance File Manager’s processing
options. In addition to using templates, you can enhance File Manager processing by writing
your own custom procedures using DFSORT control statements, or the REXX programming
language, or both.
The File Manager keyword PROC=* is used to indicate that an in-stream routine is being
supplied. If using a DFSORT procedure, the first line must be *FASTPROC. If using both
DFSORT and REXX procedures, the DFSORT must come first and the first line of the REXX
procedure must ...