Splunk Search

Extracting multiple values for single field

ebs
Communicator

I'm trying to extract multiple values for a single field. I've got the beginnings of the regex sorted to extract it, but I don't know how to separate the values. For below rather than have gzip,deflate as a single value I'd like gzip and deflate as separate values. Does anyone have any advice?

Regex: Accept-Encoding: (?P<encoder>\w+.*?)\\n>>

Log: Accept-Encoding: gzip,deflate\n>>

Results: (attached image)

Labels (2)
0 Karma

bowesmana
SplunkTrust
SplunkTrust

Try this

| makeresults
| eval Log="Accept-Encoding: gzip,deflate\n>>"
| rex field=Log max_match=0 "(?:Accept-Encoding: )?(?<encoder>\w+)(,|\\\n>>)?"
| table Log encoder

 

0 Karma

ebs
Communicator

Is there a way to do this as an field extraction? As in something I can do the regex for once and it be permanently present or would I only be able to do this extraction at search time?

0 Karma

bowesmana
SplunkTrust
SplunkTrust

You can do this as a field extraction. Just create a new field extraction through the UI, or via the configuration files

https://docs.splunk.com/Documentation/Splunk/8.1.0/Knowledge/Configureinlineextractions

I am not totally sure if that regex will extract the encoder field as multiple when done through the field extraction process, but it _should_ be possible.

 

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

[Puzzles] Solve, Learn, Repeat: Tiling

This puzzle (first published here) is based on finding groups of tessellated tiles (inspired by floor tiles I ...

SOK it to Me: Top 3 Benefits of Using Splunk Operator on Kubernetes that’ll Make ...

    Thursday, July 9, 2026  |  11:00AM–12:00PM PDT Duration: 1 hour (includes Q&A) Managing can feel like a ...

Upgrade Prep for 10.4, Network Observability Deep Dives, and More from Splunk Lantern

Splunk Lantern is Splunk’s customer success center that provides practical guidance from Splunk experts on key ...