installinstallmacos.py help message

gistfile1.txt

usage: installinstallmacos.py [-h] [--catalogurl sucatalog_url]
                              [--workdir path_to_working_dir] [--compress]
                              [--ignore-cache]

optional arguments:
  -h, --help            show this help message and exit
  --catalogurl sucatalog_url
                        Software Update catalog URL.
  --workdir path_to_working_dir
                        Path to working directory on a volume with over 10G of
                        available space. Defaults to current working
                        directory.
  --compress            Output a read-only compressed disk image with the
                        Install macOS app at the root.
  --ignore-cache        Ignore any previously cached files.