usage: tree [-h] [-v] [-d] [-o [OUTPUT_FILE]] [ROOT_DIR]

RP Tree, a directory tree generator

positional arguments:
  ROOT_DIR              Generate a full directory tree starting at ROOT_DIR

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit
  -d, --dir-only        Generate a Directory-only Tree
  -o [OUTPUT_FILE], --output-file [OUTPUT_FILE]
                        Generate a full directory tree and save it to a file.

Thanks for using RP Tree!