Updated: Oct 13, 2021
Regular expressions are extremely useful. They are everywhere, including in Splunk. And they are useful to everyone, not just data administrators onboarding new data. This could be you:
(My graphic designer friend Dominique Sénon made a little mistake in this regex, did you spot it?)
In 2016 I did a talk at Splunk's conference. The first half is an introduction to regular expressions, with a focus on things that trip beginners. The second half is some demonstration of how Splunk users can use regular expressions in their SPL.
And the video is here: https://conf.splunk.com/files/2016/recordings/become-a-regular-expressions-ninja-and-unlock-your-splunk-potential.mp4 You can hear I was a little nervous at the beginning!