searching for a file in a directory, traversing recursively
Code from http://book.mixu.net/node/ch11.html
Due to the nature of program (it's async) I may get more then one found!
And how to test when there is no match (found)? Hmm 🤔
Use EventEmmiter
The code in the [book]: (http://book.mixu.net/node/ch11.html) does not use End event. Maybe it is a good idea?
$ uname -a