All Apps and Add-ons

Field Extraction from another field

sumitkathpal292
New Member

Hi All,

We have a email logs , which are getting extracted. However, field name "file" also extracting the Urls. My plan is to extract the new field "url" from field "file" . Under field name "url" (anything which start with http* should be part of this field ) remaining we can create new field called "files".

Example
file= test1.txt , test2.txt , https://www.google.com

New expected output
url=https://www.google.com
files=test1.txt , test2.txt

Thanks in advance.

0 Karma

FrankVl
Ultra Champion

Try this (first two lines are just to generate some sample data, replace those with your actual search):

| makeresults 
| eval file= "test1.txt , test2.txt , https://www.google.com";
| eval file = split(file,",")
| eval url = mvjoin(mvfilter(match(file,"^\s*http")),",")
| eval file = mvjoin(mvfilter(NOT match(file,"^\s*http")),",")

You might need to do some cleanup on spaces

And an alternative using rex to extract the urls into the url field and sed to clean up the file field:

| makeresults 
| eval file= "http://try.me , test1.txt , http://test.nl , test2.txt , https://www.google.com";
| rex field=file max_match=0 "(?<url>http[^,\s]+)"
| eval url = mvjoin(url," , ")
| rex field=file mode=sed "s/ , http[^,\s]+( ,)?/\1/g"
| rex field=file mode=sed "s/^http[^,\s]+( , )?//g"
0 Karma

accsam
New Member

try this
...|rex field=file "(?.+[^\,]+)\,(?https.*)"

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!

May 2026 Splunk Expert Sessions: Security & Observability

Level Up Your Operations: May 2026 Splunk Expert Sessions Whether you are refining your security posture or ...

Network to App: Observability Unlocked [May & June Series]

In today’s digital landscape, your environment is no longer confined to the data center. It spans complex ...

SPL2 Deep Dives, AppDynamics Integrations, SAML Made Simple and Much More on Splunk ...

Splunk Lantern is Splunk’s customer success center that provides practical guidance from Splunk experts on key ...