# Extract string that starts with specific string using Grok

**URL:** https://discuss.elastic.co/t/extract-string-that-starts-with-specific-string-using-grok/195048
**Category:** Logstash
**Created:** [August 13, 2019, 2:41pm UTC](https://discuss.elastic.co/t/extract-string-that-starts-with-specific-string-using-grok/195048 "2019-08-13T14:41:30Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Siri\_sour](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/siri_sour/32/47746_2.png) [@Siri\_sour](https://discuss.elastic.co/u/Siri_sour)
#### Post date: [August 13, 2019, 2:41pm UTC](https://discuss.elastic.co/t/extract-string-that-starts-with-specific-string-using-grok/195048/1 "2019-08-13T14:41:30Z")

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Hi everyone,  
I am trying to structure this log :

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### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 10, 2019, 2:41pm UTC](https://discuss.elastic.co/t/extract-string-that-starts-with-specific-string-using-grok/195048/2 "2019-09-10T14:41:31Z")

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