4. Establishing Communications : Netutil Non-Interactive Mode : Command Line Flags in Netutil Non-interactive Mode : Invariant Fields
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Invariant Fields
The first four fields of an input line describe the action to be performed and the vnode with which the action is associated. These four fields appear in the order given below in every input line (except stop and quiesce server commands).
The following table defines these fields and their potential values:
Create, Destroy, or Show
The task that is performed.
Global or Private
The registration type of the object.
A global object is available to all users on the local node. A private object is available to a single user.
Login or Connection
The object to be created, destroyed, or shown.
“Connection” refers to a connection data entry.
“Login” refers to a remote user authorization.
“Attribute” refers to a vnode attribute entry.
Virtual Node Name
Vnode name
The virtual node name.
Each line in the input control file must contain a vnode identifier.
Note:  Values in any of the first three fields (Function, Type, and Object) can be abbreviated to a unique left substring. In practice, this means that a single-letter abbreviation is sufficient for any of these fields.
Values in the Virtual Node Name field cannot be abbreviated.
In addition to the four fields discussed above, other fields are required depending on the task to be accomplished by the input line. For example, an input line creating a remote user authorization requires an additional two fields: a login field and a password field. An input line creating or destroying a connection data entry requires an additional three fields: a network address field, a protocol field, and a listen address field.
For detailed information about additional fields, see the examples that follow.