I've the following problem :
I have to write something to copy a file contained in directory A. The file is unique, and has a specific extension (.jil). Only problem, directory A can contains a sub-directory B (which can contain a sub-directory C, ...) and then my file won't be located in the directory A, but in one of his sub-directories.
What command can I use to find this file without exploring all my directoties ?