HP 3000 Manuals

MPE V to MPE XL: Getting Started

Lesson 5:  Adding and Deleting UDC Files 

Long-time users of UDCs will be pleased to know that they can continue to
use UDCs in exactly the same manner as they always have.  However, the
SETCATALOG command has added the new options ;APPEND and ;DELETE to make
the task of maintaining UDC files much easier.

Let us look at how a task is done in MPE V/E and how that same task can
be done in MPE XL.

Assume that you have a UDC directory with the cataloged files UDC1, UDC2,
UDC3, and UDC4.

;DELETE 

To delete UDC2 from the directory, keeping UDC1, UDC3, and UDC4
cataloged:

MPE V/E 

     SETCATALOG udc1,udc3,udc4

MPE XL 

     SETCATALOG udc2;DELETE

or

     SETCATALOG udc1,udc3,udc4

;APPEND 

To add UDC2 back into the directory, where UDC1, UDC3, and UDC4 are
cataloged:

MPE V/E 

     SETCATALOG udc1,udc2,udc3,udc4

MPE XL 

     SETCATALOG udc2;APPEND

or

     SETCATALOG udc1,udc2,udc3,udc4


NOTE  The appended file (UDC2) is added to the end of the UDC directory
      in the command SETCATALOG UDC2;APPEND.


Replacing Existing UDC Files 

To replace existing UDC files in the directory with specified UDC files,
you would type:

     SETCATALOG newudc1,newudc2,newudc3

Exercises 

If the files TOKYO, LONDON, DALLAS, and LIMA were cataloged UDC files in
a UDC directory, show how you would do each of the following.

12.  Delete LONDON, without affecting other cataloged files.

13.  Add the UDC files MOSCOW, KENYA, and BRASILIA to the UDC directory
     without affecting other cataloged files.

14.  Replace existing UDC files in your UDC directory with the following
     files:  NEWYORK, BOSTON, BOMBAY, and ZURICH.

MPE/iX 5.0 Documentation