Splunk Search

regex help

surekhasplunk
Communicator

Hi,

My sample code looks like below :

Mon Mar  9 14:18:14 2020: Unknown trap (.1.1.1.1.1..1) received from hostname.abcd.com at: 
Value 0: hostname.abcd.com
Value 1: 1.2.3.4
Value 2: 11.22.33.44

Another sample value is 

Mon Mar  9 13:38:23 2020: Unknown trap (.1.2.3.4.5.6) received from 19.19.19.19 at: 
Value 0: 19.19.19.19
Value 1: 4.4.4.4.4
Value 2: 12.13.14.15

Value 0: give me either the IP or the hostname .
I need to extract field called machine_name with the value of Value 0:

Tags (2)
0 Karma
1 Solution

gcusello
SplunkTrust
SplunkTrust

Hi @surekhasplunk,
try this:

(?ms)Value\s+0:\s+(?<value0>[^ ]+)Value

that you can test at https://regex101.com/r/SlYtf3/1

Ciao.
Giuseppe

View solution in original post

0 Karma

gcusello
SplunkTrust
SplunkTrust

Hi @surekhasplunk,
try this:

(?ms)Value\s+0:\s+(?<value0>[^ ]+)Value

that you can test at https://regex101.com/r/SlYtf3/1

Ciao.
Giuseppe

0 Karma

surekhasplunk
Communicator

Thanks @gcusello It worked 🙂

0 Karma

gcusello
SplunkTrust
SplunkTrust

You're welcome!
Ciao and next time.
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 ...