Hostname root suffix (rootsuffix)

[ 1 Description ] [ 2 How does it work in the search window? ] [ 3 How does it work in LINQ? ]

Description

Extract the root suffix from the hostnames in a given string field. A root suffix includes everything that comes after the root domain, including it. For example, in www.my.example.co.uk, the root suffix is example.co.uk

How does it work in the search window?

Select Create field in the search window toolbar, then select the Hostname root suffix operation. You need to specify one argument:

Argument	Data type

Argument	Data type
Hostname ^mandatory	string

The data type of the values in the new field is string.

Example

In the my.upload.sample.data table, we want to get the root suffixes of the hostnames in our Hostnames field. To do it, we will create a new field using the Hostname root suffix operation.

The arguments needed to create the new field are:

Hostname - Hostnames field

Click Create column and you will see the following result:

How does it work in LINQ?

Use the operator select... as... and add the operation syntax to create the new column. This is the syntax for the Hostname root suffix operation:

rootsuffix(string)

Example

You can copy the following LINQ script and try the above example on the my.upload.sample.data table. Keep in mind you must download the CSV file above.

from my.upload.sample.data
select split(message, ";", 15) as Hostnames
select rootsuffix(Hostnames) as root_suffix