# Grok regex help
**URL:** https://discuss.elastic.co/t/grok-regex-help/139597
**Category:** Logstash
**Created:** [July 11, 2018, 2:38pm UTC](https://discuss.elastic.co/t/grok-regex-help/139597 "2018-07-11T14:38:02Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@DanV](https://discuss.elastic.co/u/DanV)
#### Post date: [July 11, 2018, 2:38pm UTC](https://discuss.elastic.co/t/grok-regex-help/139597/1 "2018-07-11T14:38:02Z")
Hello,
i'm parsing a firewall log that has it's fields separated by " ; ", using this to my advantage i decided to apply the csv filter to the log using ";" as my separator. The problem appears when one of the columns generated by the csv filter appears in the following manner:
```
"column1" => "Fri Jun 29 11:14:47 Control host CPLogToSyslog: ContentVersion: 5"
```
From this column i need to extract the fields: "Control host CPLogToSyslog" and "ContentVersion".
Looking at the grok i saw regex could be used to extract the values, but i'm not able to make it work haha.
Can someone give me any leads on a way to solve this?
Thanks!
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [July 12, 2018, 9:19am UTC](https://discuss.elastic.co/t/grok-regex-help/139597/2 "2018-07-12T09:19:27Z")
Have you tried using the grok constructor website?
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 9, 2018, 9:19am UTC](https://discuss.elastic.co/t/grok-regex-help/139597/3 "2018-08-09T09:19:28Z")
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