Splunk Search

How can I search for events that do not contain a field?

chris
Motivator

Hi

I have defined a field for different types of events, the field is recognized in all the events I want to see it. Most likely because the regex is not good enough yet. So I am interested in seeing all the events that do not contain the field I defined.

How do I search for events that do not contain a specific field?

Thanks

Chris

1 Solution

bwooden
Splunk Employee
Splunk Employee

If I want to find all events with a field named foo

* | where isnotnull(foo)

If I want to find all events without a field named foo

* | where isnull(foo)

View solution in original post

borisalves
Path Finder

| search foo="*"

bwooden
Splunk Employee
Splunk Employee

If I want to find all events with a field named foo

* | where isnotnull(foo)

If I want to find all events without a field named foo

* | where isnull(foo)

chris
Motivator

Cool thank you or the quick reply

0 Karma
Get Updates on the Splunk Community!

Feel the Splunk Love: Real Stories from Real Customers

Hello Splunk Community,    What’s the best part of hearing how our customers use Splunk? Easy: the positive ...

Data Management Digest – November 2025

  Welcome to the inaugural edition of Data Management Digest! As your trusted partner in data innovation, the ...

Splunk Mobile: Your Brand-New Home Screen

Meet Your New Mobile Hub  Hello Splunk Community!  Staying connected to your data—no matter where you are—is ...