Looks a lot like DOS...................
DOS can do regular expressions but when you get deep into it Unix directories are not quite the same as DOS folders.
For 90% of programming purposes, they work as analogies.
I have done system level (well script level) programming on both platforms and do rely on the analogies to help me.
I’ve been running linux for close to ten years and haven’t used any of that stuff or at least very little and even then, I most likely copied and pasted some code from the ubuntu forums or stackexchange. Handy chart for Ubuntu Server as it has no GUI(graphic user interface). Or if you just like typing in a terminal.