Splunk Search

Unable to create field using regex

sagar_shubham
Explorer

Hi Team, 

 

Need your help in creating regex to create a field. 

"User_Claim":("sub":"qweihaytej"; "login_id":"[email protected]";........) 

Here User_Claim is a field. I have to create a field for login_id.

I have tried with this, and it's not working. 

..... | rex field=User_Claim " login_id"(? <loginID>\w+.) "

I am unable to see the field name in the interesting fields. 

 

Please suggest in this. 

 

Thanks

Sagar

 

 

 

Labels (3)
0 Karma

ashvinpandey
Contributor

@sagar_shubham Try using the below rex:

| rex field=_raw "login_id\"\:\"(?P<login_id>.*?)\""

Also if this reply helped you in solving your problem an up-vote would be appreciated 👍

0 Karma

richgalloway
SplunkTrust
SplunkTrust

That regex has a few extra characters in it (and some missing ones) that prevent a match.  Also, "\w+" won't match the full login_id field because of the "@" (which is not a word character).  Finally, embedded quotation marks need to be escaped.  Try this command:

| rex field=User_Claim "login_id\\\":\\\" \\\"(?<loginID>[^\\\"]+)"

 

---
If this reply helps you, Karma would be appreciated.
0 Karma

sagar_shubham
Explorer

This is not working Sir. 

0 Karma

richgalloway
SplunkTrust
SplunkTrust

Meaning what, exactly?  Please share the full query you tried, what results were expected, and what results you got.

---
If this reply helps you, Karma would be appreciated.
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!

Defend at Machine Speed: Your Guide to Security Sessions at .conf26

Splunk .conf26   With threats moving at machine speed and attack surfaces expanding across hybrid ...

Where Innovation Takes Flight: The Splunk4Aviation Flight Sim Lands at .conf26

If you hear someone at .conf26 shouting "gear down, GEAR DOWN" across the show floor, you have found us.  The ...

Turn Cisco Telemetry Into Action with Cisco Data Fabric, powered by the Splunk ...

The surge in machine data is already hitting enterprise budgets, and the agentic era will only intensify it. ...