# Possible to search for the specific string in filter grook then concatenate to a pattern. TIA!

**URL:** <https://discuss.elastic.co/t/possible-to-search-for-the-specific-string-in-filter-grook-then-concatenate-to-a-pattern-tia/225214>\
**Category:** Logstash\
**Created:** [March 26, 2020, 2:19pm UTC](https://discuss.elastic.co/t/possible-to-search-for-the-specific-string-in-filter-grook-then-concatenate-to-a-pattern-tia/225214 "2020-03-26T14:19:50Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![smebrolster](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/smebrolster/32/65118_2.png) [@smebrolster](https://discuss.elastic.co/u/smebrolster)\
**Post date:** [March 26, 2020, 2:19pm UTC](https://discuss.elastic.co/t/possible-to-search-for-the-specific-string-in-filter-grook-then-concatenate-to-a-pattern-tia/225214/1 "2020-03-26T14:19:50Z")

</div>

![image](https://us1.discourse-cdn.com/elastic/original/3X/f/4/f4cac5f7e5c32df58fcbfba5455be12ded86b5cb.png)

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 23, 2020, 2:19pm UTC](https://discuss.elastic.co/t/possible-to-search-for-the-specific-string-in-filter-grook-then-concatenate-to-a-pattern-tia/225214/2 "2020-04-23T14:19:51Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.