# Split function in ruby filter
**URL:** https://discuss.elastic.co/t/split-function-in-ruby-filter/134538
**Category:** Logstash
**Created:** [June 5, 2018, 6:52am UTC](https://discuss.elastic.co/t/split-function-in-ruby-filter/134538 "2018-06-05T06:52:50Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Shivom\_Kumar](https://discuss.elastic.co/u/Shivom_Kumar)
#### Post date: [June 5, 2018, 6:52am UTC](https://discuss.elastic.co/t/split-function-in-ruby-filter/134538/1 "2018-06-05T06:52:51Z")
i want to use spilt function in ruby to split one list into two arrays. however there are some type of values that i want to ignore based on some regex.
i have defined some regex in patterns dir of logstash. can someone please tell me how to access those regex in ruby filter. i am able to get those regex in grok filter by adding this line
patterns\_dir =\> ["/etc/logstash/patterns"]
but i dont know how to do the same for ruby filter. if i am adding the same line in ruby filter then logstash is giving error.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 3, 2018, 6:52am UTC](https://discuss.elastic.co/t/split-function-in-ruby-filter/134538/2 "2018-07-03T06:52:51Z")
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