# Remove Subfield using ruby

**URL:** https://discuss.elastic.co/t/remove-subfield-using-ruby/225055
**Category:** Logstash
**Created:** [March 25, 2020, 7:44pm UTC](https://discuss.elastic.co/t/remove-subfield-using-ruby/225055 "2020-03-25T19:44:27Z")
**Posts on this page:** 1
**Showing post:** 4

<div class="post-metadata">

### Author: ![inhinyera16](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/inhinyera16/32/61625_2.png) [@inhinyera16](https://discuss.elastic.co/u/inhinyera16)
#### Post date: [March 26, 2020, 4:56pm UTC](https://discuss.elastic.co/t/remove-subfield-using-ruby/225055/4 "2020-03-26T16:56:05Z")

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Hi badger thank you, but i tweak a little

```
            ruby { code => '
                    event.get("attachments").each_with_index { |b,index|
                            event.remove("[attachments][#{index}][documentCharacteristic]")
                    }
                    '
            }
```

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