# Parse substring in a line in grok

**URL:** <https://discuss.elastic.co/t/parse-substring-in-a-line-in-grok/89024>\
**Category:** Logstash\
**Created:** [June 12, 2017, 11:15am UTC](https://discuss.elastic.co/t/parse-substring-in-a-line-in-grok/89024 "2017-06-12T11:15:18Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![ibrahimsharaf](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ibrahimsharaf/32/17304_2.png) [@ibrahimsharaf](https://discuss.elastic.co/u/ibrahimsharaf)\
**Post date:** [June 12, 2017, 11:15am UTC](https://discuss.elastic.co/t/parse-substring-in-a-line-in-grok/89024/1 "2017-06-12T11:15:18Z")

</div>

Hello, I've a sample line `'stock_status': 'IN_STOCK', 'title_ar': u"World's Greatest Mum Card"`  
I want to parse the stock\_status value, so I created this grok filter

> grok{  
> match =\> ["message", "'stock\_status': '%{GREEDYDATA:stock\_value}'"]  
> }

but the output is:

> "stock\_value": [  
> [  
> "IN\_STOCK', 'title\_ar': u"World"  
> ]  
> ]

I want it to be:

> "stock\_value": [  
> [  
> "IN\_STOCK"  
> ]  
> ]

Can you help?

---

<div class="post-metadata">

**Author:** ![paz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/paz/32/28003_2.png) [@paz](https://discuss.elastic.co/u/paz)\
**Post date:** [June 12, 2017, 11:45am UTC](https://discuss.elastic.co/t/parse-substring-in-a-line-in-grok/89024/2 "2017-06-12T11:45:48Z")

</div>

Are those the complete samples of logs and grok pattern? If not, it would help pasting those instead.

Anyhow, you can try this (based on the above info)

```auto
grok{
    match => ["message", "'stock_status': '%{NOTSPACE:stock_value}',"]
}
```

---

<div class="post-metadata">

**Author:** ![ibrahimsharaf](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ibrahimsharaf/32/17304_2.png) [@ibrahimsharaf](https://discuss.elastic.co/u/ibrahimsharaf)\
**Post date:** [June 12, 2017, 11:46am UTC](https://discuss.elastic.co/t/parse-substring-in-a-line-in-grok/89024/3 "2017-06-12T11:46:51Z")

</div>

This comma at the end solved the problem, thanks @paz

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<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:** [July 10, 2017, 11:46am UTC](https://discuss.elastic.co/t/parse-substring-in-a-line-in-grok/89024/4 "2017-07-10T11:46:55Z")

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