Splunk Search

Field Extraction

aknsun
Path Finder

Need some suggestion for field extraction.

Take this as an example:
I have a file path /opt/splunk/var/log/splunk/splunkd.log

There is already a field extraction done for this called file_name.

I would like to do a filed extraction with just the Directory path ( /opt/splunk/var/log/splunk/) and name dir_name.

The problem arises when I try to do a new extraction, as the path is sort of already used by file_name and splunk mentions that I need "To highlight text that is already part of an existing extraction, first turn off the existing extractions"

My doubt here is. If I turn of the existing extraction and then create one for dir_name, would I still be able to use file_name or does that get over-ridden by the new extraction?

Thanks,
AKN

0 Karma

to4kawa
Ultra Champion
| makeresults 
| eval file_name="/opt/splunk/var/log/splunk/splunkd.log" 
| rex field=file_name "(?<dir_name>\/.*\/)"

Hi, how about this?

0 Karma

vnravikumar
Champion

Hi

Check this

| makeresults 
| eval path="/opt/splunk/var/log/splunk/splunkd.log" 
| rex field=path "(^(?P<dir_name>.+)\/)([^\/]+)$"

or

| makeresults 
| eval path="/opt/splunk/var/log/splunk/splunkd.log" 
| eval dir_name=replace(path,"(\/[^\/]+)$","")
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!

At .conf26, Don’t Just See What’s Next. Help Shape It at Innovation Labs.

Long before a new capability reaches the keynote stage, it begins as an idea waiting to be tested. At ...

Forwarder Topology Guidance: Intermediate HF vs Intermediate UF

Why Universal Forwarders Should Not Be Used as Intermediate Forwarders A practical Splunk forwarding topology ...

Data Management Digest – August 2026

Data Management Digest   Welcome to the August 2026 edition of Data Management Digest! August was a big month ...