Splunk Search

Rex how to return static text instead of unmatched field?

giovere
Path Finder

I'm trying to apply a regular expression on input, if regex is not matched I'd like to return a static text as a field value (NULL for example). Splunk 4.3.7.

My current query looks like this, but this would return anything only if all rexes are matched, in example below just first line would work.
Any suggestions how can I get it working?

... | rex "Name=(?.+?);" | rex "Age=?(?.+?);" | rex "Weight=?(?.+?);"

Input:

Some random text; Name=Ruby; Age=18; yada yada; Weight=50

Some random text; Name=Bon; Age=19;

Some random text; Age=18; yada yada; Weight=52

Desired output

Name,Age,Weight

Ruby,18,50

Bon,19,NULL

NULL,18,52

Tags (2)
1 Solution

somesoni2
SplunkTrust
SplunkTrust

Try this

your base search | rex "Name=(?<name>\w+)" | rex "Age=?(?<age>\w+)" | rex "Weight=?(?<weight>\w+)" | fillnull value=NULL

View solution in original post

somesoni2
SplunkTrust
SplunkTrust

Try this

your base search | rex "Name=(?<name>\w+)" | rex "Age=?(?<age>\w+)" | rex "Weight=?(?<weight>\w+)" | fillnull value=NULL
Get Updates on the Splunk Community!

Splunk Lantern | Getting Started with Edge Processor, Machine Learning Toolkit ...

Splunk Lantern is Splunk’s customer success center that provides advice from Splunk experts on valuable data ...

Enterprise Security Content Update (ESCU) | New Releases

In the last month, the Splunk Threat Research Team (STRT) has had 2 releases of new security content via the ...

Announcing the 1st Round Champion’s Tribute Winners of the Great Resilience Quest

We are happy to announce the 20 lucky questers who are selected to be the first round of Champion's Tribute ...