I wonder how can I get only part of the information contained in a .csv file, it contains information like this: firstname.lastname@example.org, I wonder how can I get just the domain, only the "redehost.com.br ".
From Kibana, of course.
Once Kibana 5 is released you'll be able to import the CSV file into elasticsearch and process the values inside it to do what you want.
Until then, you'll have to put this information into elasticsearch with a tool like logstash, and configure elasticsearch to extract the data the way you like.
You know how I do it?
For've tried many ways and it did not work !
Here's a tutorial you might find helpful: https://kevinkirsche.com/2014/08/25/using-logstash-to-import-csv-files-into-elasticsearch/