There are no directives specific to the PtrUpdate function; however the following
mfims imsdbu directives are available when using the PtrUpdate function:
CLS
Clears the screen before starting the utility.
ECHO
Controls the display of and interaction with the messages displayed by IMSDBU.
LIST
Controls the location and name of the detail listing file, which includes items such as source listings, completion status, error messages and execution statistics.
LISTOPEN
Controls the open disposition of the detail listing file.
