# Logstash CSV mutate, split and filter

**URL:** <https://discuss.elastic.co/t/logstash-csv-mutate-split-and-filter/301084>\
**Category:** Logstash\
**Created:** [March 30, 2022, 12:34pm UTC](https://discuss.elastic.co/t/logstash-csv-mutate-split-and-filter/301084 "2022-03-30T12:34:57Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [March 30, 2022, 5:47pm UTC](https://discuss.elastic.co/t/logstash-csv-mutate-split-and-filter/301084/4 "2022-03-30T17:47:36Z")

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> [@parthmaniar](#):
>
> tld should hold `.co.uk or .com`

I just answered a similar question [here](https://discuss.elastic.co/t/keep-only-domain-tld-in-field-with-various-subdomains/301097/2). A general solution to this problem is ridiculously complicated.

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