import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class ExecuteShellScript {

	private static final String PATH = "scripts/halloWelt.sh";
	
	public static void main(String[] args) {
		executeScript();
	}
	
	public static void executeScript() {
		if (!new File(PATH).canExecute()){
			System.out.println(PATH + " kann nicht ausgef\u00FChrt werden!");
			return;
		}
		String arg = "Hallo Welt!";
		ProcessBuilder builder = new ProcessBuilder(PATH, arg);
		Process process = null;
		try {
			process = builder.start();
			int status = process.waitFor();
			System.out.println("Exit status: " + status);

			InputStream is = process.getInputStream();
			InputStreamReader isr = new InputStreamReader(is);
			BufferedReader br = new BufferedReader(isr);
			String line;
			while ((line = br.readLine()) != null) {
				System.out.println(line);
			}
			System.out.println("Programmende");
		} catch (IOException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
	}
}