# Need to fetch only selected data from Grok filter
**URL:** https://discuss.elastic.co/t/need-to-fetch-only-selected-data-from-grok-filter/262972
**Category:** Logstash
**Created:** [February 2, 2021, 12:21pm UTC](https://discuss.elastic.co/t/need-to-fetch-only-selected-data-from-grok-filter/262972 "2021-02-02T12:21:22Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@ankitdevnalkar](https://discuss.elastic.co/u/ankitdevnalkar)
#### Post date: [February 2, 2021, 12:21pm UTC](https://discuss.elastic.co/t/need-to-fetch-only-selected-data-from-grok-filter/262972/1 "2021-02-02T12:21:22Z")
`Sample Log : 2020-12-16T04:43:43Z Bitcoin Core version v0.20.1.0-g7ff64311bee570874c4f0dfa18f518552188df08 (release build)`
I want to get the only `version(v0.20.1.0)` from the above log,
Note : version string is a whole word `v0.20.1.0-g7ff64311bee570874c4f0dfa18f518552188df08` and I required only `v0.20.1.0`.
can anybody help me with what I should write in grok pattern ❓
---
### Author:  [@tatdat](https://discuss.elastic.co/u/tatdat)
#### Post date: [February 2, 2021, 3:27pm UTC](https://discuss.elastic.co/t/need-to-fetch-only-selected-data-from-grok-filter/262972/2 "2021-02-02T15:27:41Z")
Use grok filter in logstash
```auto
filter {
grok {
match => { "message" =>" .* version %{NOTSPACE:version}-.*" }
}
}
```
---
### Author:  [@ankitdevnalkar](https://discuss.elastic.co/u/ankitdevnalkar)
#### Post date: [February 2, 2021, 5:43pm UTC](https://discuss.elastic.co/t/need-to-fetch-only-selected-data-from-grok-filter/262972/3 "2021-02-02T17:43:30Z")
> [@tatdat](#):
>
> `.* version %{NOTSPACE:version}-.*`
@tatdat Thanks a lot 🙂
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 2, 2021, 5:44pm UTC](https://discuss.elastic.co/t/need-to-fetch-only-selected-data-from-grok-filter/262972/4 "2021-03-02T17:44:22Z")
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