# Duplicate field

**URL:** https://discuss.elastic.co/t/duplicate-field/42311
**Category:** Logstash
**Created:** [February 20, 2016, 4:30pm UTC](https://discuss.elastic.co/t/duplicate-field/42311 "2016-02-20T16:30:23Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Amos\_Shahar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amos_shahar/32/55444_2.png) [@Amos\_Shahar](https://discuss.elastic.co/u/Amos_Shahar)
#### Post date: [February 20, 2016, 4:30pm UTC](https://discuss.elastic.co/t/duplicate-field/42311/1 "2016-02-20T16:30:23Z")

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hi,  
I am trying to parse the file name from the source field without the path, I trid to do the following:  
grok {  
match =\> ["source", "%{GREEDYDATA}/%{GREEDYDATA}/%{GREEDYDATA:filename9}"]  
#add\_field =\> { "filename9" =\> "%{filename9}.gababa" }  
}

I am getting only the filename (without the path - which is good) but twice. for example  
myfile.log myfile.log

any idea?

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### Author: ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [February 21, 2016, 8:02pm UTC](https://discuss.elastic.co/t/duplicate-field/42311/2 "2016-02-21T20:02:28Z")

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Can we see the entire config?

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### Author: ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [February 21, 2016, 8:07pm UTC](https://discuss.elastic.co/t/duplicate-field/42311/3 "2016-02-21T20:07:37Z")

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Don't use multiple GREEDYDATA in a single expression. Please also show us what the data looks like in addition to the full config requested by Mark.

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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, 5:10am UTC](https://discuss.elastic.co/t/duplicate-field/42311/4 "2017-07-06T05:10:23Z")

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