Splunk Search

How to extract a field between two patterns in a search for further stats processing?

atanasmitev
Path Finder

I have a _raw field with the following data in:

..............    "Stuff\":\"CAPITALS_AND_UNDERSCORES\",      ...........

The way I see it, I need to extract everything between "Stuff\":\" and ", patterns.

Can you help me extract the CAPITALS_AND... info from this line to a field, so that I further perform "stats" searches ?.
Splunk build is 6.0.1 if it matters.

1 Solution

MuS
SplunkTrust
SplunkTrust

Hi atanasmitev,

try something like this:

your base search here | rex "Stuff\\\"\:\\\"(?<myField>\w+)" | ...

This will get you a new field called myField and matches any word character (alphanumeric & underscore). If there are other characters then the provided example, simply adapt the regex.

small update: and if this fits your needs, add it as automatic field extraction - to do this follow the docs http://docs.splunk.com/Documentation/Splunk/6.1.4/Knowledge/Addfieldsatsearchtime

Hope this helps ...

cheers, MuS

View solution in original post

MuS
SplunkTrust
SplunkTrust

Hi atanasmitev,

try something like this:

your base search here | rex "Stuff\\\"\:\\\"(?<myField>\w+)" | ...

This will get you a new field called myField and matches any word character (alphanumeric & underscore). If there are other characters then the provided example, simply adapt the regex.

small update: and if this fits your needs, add it as automatic field extraction - to do this follow the docs http://docs.splunk.com/Documentation/Splunk/6.1.4/Knowledge/Addfieldsatsearchtime

Hope this helps ...

cheers, MuS

atanasmitev
Path Finder

Works thanks 🙂 Finally . All I needed was to add another search option before the regexp, like so

my base search "Stuff" | rex field=thefield_to_rex "Stuff\\\"\:\\\"(?<myField>\w+)" | ... 

It seems like the entire field to regexp followed the same "ID" : "Info" notation, so instead of extract all it did was print 🙂
The rex works like a charm, yet my search was wrong 😄

Get Updates on the Splunk Community!

What the End of Support for Splunk Add-on Builder Means for You

Hello Splunk Community! We want to share an important update regarding the future of the Splunk Add-on Builder ...

Solve, Learn, Repeat: New Puzzle Channel Now Live

Welcome to the Splunk Puzzle PlaygroundIf you are anything like me, you love to solve problems, and what ...

Building Reliable Asset and Identity Frameworks in Splunk ES

 Accurate asset and identity resolution is the backbone of security operations. Without it, alerts are ...