Splunk Search

Concatenate fields into string on form

timmy13
Communicator

I want a form that will allow a user to "build" the appropriate "source" (or log file name) based on selecting various pieces of data.

So the fields will be like this:

Date
Application
Server

I want to then build a string to use in the search.

Trying to use eval but getting now where....

sourcetype=MySourceType | eval sourcelog=Date."-".Application."-".Server.".log" |search source=sourcelog

This always returns 0 results. If I leave out the search function, the sourcelog field is populated.

Once I can get this search to work, I can use it in the populatingsearch function of the form.

Ideas?

hazekamp
Builder

When comparing two fields you want to use the where command instead:

sourcetype=MySourceType | eval sourcelog=Date."-".Application."-".Server.".log" | where source=sourcelog

timmy13
Communicator

Great hazekamp, thanks for the help. That works, but I still have a problem.

Of course, when defining source=, I can use wild cards. However, when I place wildcards into sourcelog, and then use the where source=sourcelog command, it fails. seems the where doesn't like wildcards.

Ideas?

0 Karma
Career Survey
First 500 qualified respondents will receive a $20 gift card! Tell us about your professional Splunk journey.
Get Updates on the Splunk Community!

Observe and Secure All Apps with Splunk

 Join Us for Our Next Tech Talk: Observe and Secure All Apps with SplunkAs organizations continue to innovate ...

What's New in Splunk Observability - August 2025

What's New We are excited to announce the latest enhancements to Splunk Observability Cloud as well as what is ...

Introduction to Splunk AI

How are you using AI in Splunk? Whether you see AI as a threat or opportunity, AI is here to stay. Lucky for ...