topic Re: Regex on search output? in Splunk Search

Regex on search output?

jcmaynard — Fri, 05 Apr 2013 16:58:45 GMT

Search: index=XXX source=/xxx/xxx/xxxx.log | regex 'something'

How would I do this properly showing just the regexed output?

Thanks...

Re: Regex on search output?

alacercogitatus — Fri, 05 Apr 2013 17:08:03 GMT

So there are two ways.

index=xx source=/xx.log | rex field=your_field "(?<your_new_field>REGEX)"| table your_new_field

This shows only the value of the captured regex.

index=xx source=/xx.log | regex _raw="REGEX"

This keeps only the events that match REGEX.

http://docs.splunk.com/Documentation/Splunk/latest/SearchReference/Regex
http://docs.splunk.com/Documentation/Splunk/latest/SearchReference/Rex

Re: Regex on search output?

jcmaynard2 — Fri, 05 Apr 2013 17:16:36 GMT

The second one gives me the lines with what I'm looking for, when I choose 'View Source', it's giving me the full line and not the extracted data from each line. Can I do that?

Re: Regex on search output?

rtadams89 — Mon, 28 Sep 2020 13:40:59 GMT

You can either use the first method and then filter out events where "your_new_field" is null (because the regex didn't match anything). Or you could run the second command given to filter out the relevant events, and then pipe that to the first command to actually do the extraction.