The DISPLAY subcommand

The DISPLAY subcommand displays an entry of the index block that was read by the READ command.

When you enter the DISPLAY subcommand (after specifying READ UPDATE), the BLKUPD command copies the original block to a new block in storage. This copy is referred to as a new index block. You can then use the DELETE, CHANGE, and INSERT subcommands of the DISPLAY subcommand to modify the displayed entries.

If the block obtained by the READ command is not a valid index block, RACF® rejects your DISPLAY request.

Syntax of the DISPLAY subcommand of READ

DISPLAY [ENTRY(entryname) CLASS(classname)]
        [GENERIC]

where:

ENTRY(entryname)

Specifies the index entry where the display begins. If you do not specify an entry name, the display begins at the first entry in the index block; the entry name can be from 1 to 255 alphanumeric characters, which can be enclosed in quotation marks or not, and can contain hexadecimal data.

To specify a mixed-case entry name, you must enclose entryname in quotations. If you do not enclose entryname in quotations, alphabetic characters in entryname are treated as uppercase characters, regardless of the case in which you enter them.

If you specify an entry name, you must specify a class name.

CLASS(classname)

Must be one of the following:

GROUP
USER
DATASET
The class name of the general resource

GENERIC

Indicates that the index specified in ENTRY(entryname) is a generic name.