Checkout latest release. Download it and place into your $PATH.
Usage
NAME:
Radarr CLI - Perform actions on your Radarr instance using CLI
USAGE:
radarr [global options] command [command options] [arguments...]
AUTHOR:
SkYNewZ <quentin@lemairepro.fr>
COMMANDS:
movies Perform actions on movies
status Get your Radarr instance status
help, h Shows a list of commands or help for one command
GLOBAL OPTIONS:
--apiKey value Radarr API key [$RADARR_API_KEY]
--url value Radarr instance URL [$RADARR_URL]
--help, -h show help (default: false)
--version, -v print the version (default: false)