4 A simple to use, efficient, and full-featured Command Line Argument Parser
7 demo[EXE] [OPTIONS] --name <NAME>
10 -c, --count <COUNT> Number of times to greet [default: 1]
11 -h, --help Print help information
12 -n, --name <NAME> Name of the person to greet
13 -V, --version Print version information
19 *(version number and `.exe` extension on windows replaced by placeholders)*