# How to remove brackets on grok patterns?
**URL:** https://discuss.elastic.co/t/how-to-remove-brackets-on-grok-patterns/310547
**Category:** Logstash
**Tags:** ingest-pipeline
**Created:** [July 25, 2022, 2:33pm UTC](https://discuss.elastic.co/t/how-to-remove-brackets-on-grok-patterns/310547 "2022-07-25T14:33:02Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@SamuelSMendes](https://discuss.elastic.co/u/SamuelSMendes)
#### Post date: [July 25, 2022, 2:33pm UTC](https://discuss.elastic.co/t/how-to-remove-brackets-on-grok-patterns/310547/1 "2022-07-25T14:33:02Z")
Continuing the discussion from [Remove characters in grok](https://discuss.elastic.co/t/remove-characters-in-grok/72548/2):
On the previous post is an example of how to remove "," in grok. I was wondering if there is something to remove the "[,]" as well.
I still don't know if is it's coming from my log file structure, but since I am a beginner at the pipelines I got here to see if theres anything already made to deal with it.
Here is problem the brackets are causing:
---
### Author:  [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)
#### Post date: [August 12, 2022, 11:34pm UTC](https://discuss.elastic.co/t/how-to-remove-brackets-on-grok-patterns/310547/2 "2022-08-12T23:34:44Z")
What does your pipeline configuration looks like?
You can use the `mutate` filter to remove the squared brackets.
Something like this:
```auto
mutate {
gsub => ["ID", "[\[\]]", "" ]
}
```
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 9, 2022, 11:35pm UTC](https://discuss.elastic.co/t/how-to-remove-brackets-on-grok-patterns/310547/3 "2022-09-09T23:35:32Z")
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