Rex OverView | Splunk Commnad | Useful Command | Extract Unstructured Data using Splunk
https://www.youtube.com/watch?v=WqpK4OgXUt0
Architecture of Splunk
https://www.youtube.com/watch?v=UiIHp4G3A0k
Splunk Search Processing Language ( Commands for Developers )
https://www.youtube.com/watch?v=luLb1Y0gsSg