# Concatenate field and String

**URL:** https://discuss.elastic.co/t/concatenate-field-and-string/43239
**Category:** Logstash
**Created:** [March 2, 2016, 11:55am UTC](https://discuss.elastic.co/t/concatenate-field-and-string/43239 "2016-03-02T11:55:47Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![jobobabas](https://avatars.discourse-cdn.com/v4/letter/j/94ad74/32.png) [@jobobabas](https://discuss.elastic.co/u/jobobabas)
#### Post date: [March 2, 2016, 11:55am UTC](https://discuss.elastic.co/t/concatenate-field-and-string/43239/1 "2016-03-02T11:55:47Z")

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First Sry for my bad englisch  
I am using logstash since 2 days  
I want to concatenate a field and a String in the field

Like the field is "Test" and i want to add a "\_NR1" to the end

Thanks for help

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### Author: ![jobobabas](https://avatars.discourse-cdn.com/v4/letter/j/94ad74/32.png) [@jobobabas](https://discuss.elastic.co/u/jobobabas)
#### Post date: [March 2, 2016, 1:25pm UTC](https://discuss.elastic.co/t/concatenate-field-and-string/43239/2 "2016-03-02T13:25:39Z")

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Problem solved

add\_field =\> {  
zusatz =\> "NR\_2"  
gesammt =\> "%{Test\_var} %{zusatz}"  
}

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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: [July 6, 2017, 5:08am UTC](https://discuss.elastic.co/t/concatenate-field-and-string/43239/3 "2017-07-06T05:08:49Z")

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