CBR1054I Command rejected. Required operand missing.

Explanation
 The operator has entered a command of one of the
following forms:  MODIFY OAM,verb,operand(s)
LIBRARY verb,operand(s)

 A required operand is missing
from the command.

System action
 The command is rejected.

Operator response
 Determine the cause of the error, then enter
a command with all required operands.

Source
 Object Access Method (OAM)

Routing Code
 2

Descriptor Code
 5