$ cm --help
Calculate and convert your cm/360°

Usage: cm <COMMAND>

Commands:
  from  Convert your in-game sensitivity to cm/360°
  to    Convert your cm/360° to an in-game sensitivity
  list  List supported games
  help  Print this message or the help of the given subcommand(s)

Options:
  -h, --help     Print help
  -V, --version  Print version