User wants to pass a directory in and all files are renamed to be prefaced with the folder before the file names.

Example:

If the folder is `logs` and under that there are folders based on the date, for a sample. The files in the folder `january` would all be prefaced with `january`, meaning a set of files such as; file1.txt, file2.txt, and file3.txt would be renamed to be januaryfile1.txt, januaryfile2.txt, januaryfile3.txt.