!!! Overview[1]
[{$pagename}] is a [LDAP ModifyRequest Operation] within an [Modify Request]

If the [modify Request] is a [{$pagename}] and there is an attribute description without any values, then __all values__ for the specified attribute will be removed from the entry. 

If the [modify Request] is a [{$pagename}] and the specified attribute does not exist in the entry, then this will have __no effect__.

If the [modify Request] is a [{$pagename}] and there and there is an attribute description with one or more values, then any __existing values__ for the specified attribute values will be removed and __replaced__ with the provided set of values. 

If the [modify Request] is a [{$pagename}] and the specified attribute did not previously have any values in the entry, then the provided set of values will be __added__.!! [LDIF Examples]
The following example __replaces__ the existing mail value with the specified value, jdoe@novell.com. If the attribute is [MULTI-VALUE], __all values__ are removed and the specified value is __added__. If the attribute doesn't exist, it is __added__ with the specified value.
{{{
version: 1

dn: cn=johndoe, ou=provo, ou=users, o=novell
changetype: modify
replace: mail
mail: jdoe@novell.com
}}}

! Modify [{$pagename}] - specify Multiple Modifications in a single [LDIF] record)

The following example __adds__ a telephone number, __deletes__ the fax telephone number attribute, and __replaces__ the mail attribute. A line containing only a hyphen character is used to mark the end of an attribute entry.
{{{
version: 1

dn: cn=johndoe, ou=provo, ou=users, o=novell
changetype: modify
add: telephonenumber
telephonenumber: 555 555-5555
-
delete: facsimileTelephoneNumber
-
replace: mail
mail: jdoe@novell.com
}}}

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
----
* [#1] - [The LDAP Modify Operation|https://www.ldap.com/the-ldap-modify-operation/|target='_blank'] - based on information obtained 2016-07-03