Pick a free unused port (CLI)
```text $ portpicker -h Pick a free unused port (CLI)
Usage: portpicker [OPTIONS]
Options: -n Pick N free unused ports [default: 1] -h, --help Print help -V, --version Print version ```
text $ portpicker -V portpicker 0.1.0
text $ portpicker 20451
text $ portpicker -n 5 18000 24456 23626 18180 23017