bal run hello.bal If you were looking for something else (like a Ballerina doll download, game, or other software), always avoid unofficial or pirated download sites offering "Ballerina pobieranie za darmo" (free download). These often contain malware.
bal version You should see the installed version number. Create a file hello.bal : ballerina pobieranie
Run it with:
import ballerina/io; public function main() { io:println("Hello, World!"); } bal run hello