Splunk Search

How do you extract a string from field _raw?

mukesh2019
Explorer

Hi ,

I am trying to extract info from the _raw result of my Splunk query. Currently my _raw result is:

_raw="ServiceOperation=Hudson_RetrivePatientNot|Broker_HostName=CHELSEA|RequestDateTime=20190113T03:02:18.209400|MessageTranID=**8bfa95c4170911e9b1740a099a2b0000**|UserID=A123|AppID=AERO|ExecGrpName=xxxxxx|TimeStamp=2019-01-13T03:02:28.364605|Message="RetrievePatientFailure"|Detail="RetreivePatientNotes""

I would like to extract the MessageTranID, which in this case is '8bfa95c4-1709-11e9-b174-0a099a2b0000', from the above _raw string.

Something like : base search | regex

Can anyone help?

Thanks so much!

Tags (2)
0 Karma
1 Solution

gcusello
SplunkTrust
SplunkTrust

Hi mukesh2019,
try this regex:

\|MessageTranID\=(?<MessageTranID>[^\|]*)

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

Bye.
Giuseppe

View solution in original post

0 Karma

vnravikumar
Champion

Hi @mukesh2019

Please try this:

| rex field=_raw "MessageTranID\=(?P<MessageTranID>(.*))\|UserID\="

gcusello
SplunkTrust
SplunkTrust

Hi mukesh2019,
try this regex:

\|MessageTranID\=(?<MessageTranID>[^\|]*)

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

Bye.
Giuseppe

0 Karma

mukesh2019
Explorer

Thanks a lot.it works 🙂

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!

Data Management Digest – August 2026

MichelleCorpora_1-1788182384472.png Welcome to the August 2026 edition of Data Management Digest! August was a ...

Your Feedback. Our Roadmap. Visit the PX Feedback Booth at .conf26

You use Splunk every day, come and help shape what's next.  Save Your Seat: Product-Focused Sessions at ...

Agentic SOC Triage: Investigating Splunk ES Notables with MCP Server and a Local LLM

The Problem: Too Many Alerts, Too Little Context Security operations teams running Splunk Enterprise Security ...