OSF DCE Administration Guide--Core Components

OSF DCE Administration Guide—Core Components

then the previous command would change the values as follows:

{multi_name value1}

32.4.3 Deleting Attribute Instances

Use the dcecp modify command with the -remove option to delete attribute instances

attached to an object. To delete all instances of an attribute from an object, supply the

attribute name to the -remove option. For example, the following command deletes all

instances of the MVSname attribute from the principal named delores:

dcecp> principal modify delores -remove MVSname

To remove a single instance of a multivalued attribute, supply the attribute name and the

attribute value. For example, the following command deletes only the instance value5

from the multivalued attribute named multi-value. All other values and the attribute

itself remain intact.

dcecp> principal modify delores -remove {multi-value value5}

However, if you delete the last instance of a multivalued attribute, dcecp will also

delete the attribute from the object because an attribute without a value cannot be

attached to an object. Note that you cannot combine deleting multivalued attributes and

values from multivalued attributes with the same command.

To delete more than one attribute from an object, you must use the -types option. This

option tells dcecp that all the values supplied are the names of attribute types, not

attribute values. For example, the following sample command uses the -types option to

delete the attributes named MVSname and MVSinteger from the principal delores:

dcecp> principal modify delores -remove {MVSname MVSinteger} -types

Without the -types option, dcecp will assume that MVSinteger is the value for the

MVSname attribute and, because no such value exists, the command will fail.

32.4.4 UsingAttribute Sets

At attribute set is a collection of attribute UUIDs that identify the attribute instances that

are members of the set. Attribute sets let you group related attributes instances on an

object for easier access. For example, if you use the dcecp show operation to display

an attribute set, the display expands the attribute set and includes all members of the set

in the display output. This attribute expansion works only for dcecp commands that

display information. The commands to create and modify attribute instances work only

on the speciﬁc attribute named in the command. Since the attributes that are set

members exist independently of the attribute set, they can be manipulated directly like

any other attribute.

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