import java.io.BufferedReader;
import java.io.InputStreamReader;

public class RunLinux {
    public static void main(String args[]) {
        String s;
        Process p, p1;
        try {
            p = Runtime.getRuntime().exec("cd www");
	    //p.waitFor();

            p1 = Runtime.getRuntime().exec("ls");
            BufferedReader br = new BufferedReader(
                new InputStreamReader(p1.getInputStream()));
            while ((s = br.readLine()) != null)
                System.out.println(s);

            p1.waitFor();
            //System.out.println ("exit: " + p.exitValue());
            p1.destroy();
            p.destroy();
        } catch (Exception e) {}
    }
}