Splunk Search

Using rex to find matching values.

veera9
New Member

I have the following
ACTION :[7] 'CONNECT'
DATABASE[1] 'SYSTEM'

That's in the _raw data.
How do I extract CONNECT and SYSTEM under headers ACTION and DATABASE?

0 Karma

gcusello
SplunkTrust
SplunkTrust

Hi veera9,
Try this

ACTION\s:\[\d\]\s\'(?<ACTION>[^\']*)\'\s+DATABASE\[\d+\]\s\'(?<DATABASE>[^\']*)\'

You can test it at https://regex101.com/r/2BwU4O/1

Bye.
Giuseppe

DalJeanis
Legend

That would be

 | rex "ACTION\s:\[\d\]\s\'(?<ACTION>[^\']*)\'\s+DATABASE\[\d+\]\s\'(?<DATABASE>[^\']*)\'"

The above works fine. Based on your example breaking across lines, I might go with

 | rex "ACTION\s:\[\d\]\s\'(?<ACTION>[^\']*)\'"
 | rex "DATABASE\[\d+\]\s\'(?<DATABASE>[^\']*)\'"

...or...

 | rex "ACTION\s:\[\d\]\s\'(?<ACTION>[^\']*)\'|DATABASE\[\d+\]\s\'(?<DATABASE>[^\']*)\'" max_match=0

Any of the above should work.

0 Karma

veera9
New Member

Thank you everyone.

0 Karma

gcusello
SplunkTrust
SplunkTrust

If you're satisfied, please accept or upvote this answer.
Bye.
Giuseppe

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!

Make Your Machine Data AI-Ready in Splunk

Every team is getting ready for AI agents.   Thursday, November 12, 2026  |  11AM  PST / 2PM EST   ...

Splunk Asynchronous Forwarding Explained

Splunk asynchronous forwarding is often misunderstood as simply setting autoLBVolume. That is not quite right. ...

How to Monitor AI Agents with Splunk Agent Observability

Let’s say I’m running a travel planning AI app in production. A user asks for three concise hotel options in ...