To make this command line tool work clone this repo, in your local pc:
git clone https://github.com/eziz-hudayberdiyev/simple-hello-cli.git
Then run this app from the folder you cloned via following command
npm install -g .
This installs script globally, so you can type hello at the command line:
hello
Following image is tested case using cmd on windows 10 machine
To uninstall cli-tool, run the following command:
npm uninstall -g cli-app-by-node
Screenshot of command line after uninstalling script