usage: py_rename.py [-h] [-v] [-A string] [-B string] [-r string] [-n]
                    [--lower] [--remove-space] [--camel-case] [-s]
                    filename

Python Rename

positional arguments:
  filename              filename

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit
  -A string, --prefix string
                        prefix filename with prefix string
  -B string, --postfix string
                        postfix filename with postfix string
  -r string, --rename string
                        replace filename with string
  -n, --dryrun          perform a dry run (will not run any actions)
  --lower               lowercase the filename
  --remove-space        remove space with underscore
  --camel-case          convert to camel case
  -s, --silent          silence output