run system calls through java
import java.io.*;
public class Hello {
public static void main(String args[]) {
try {
Runtime r = Runtime.getRuntime();
Process p = r.exec("ls -l");
p.waitFor();
BufferedReader b = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line = "";
while ((line = b.readLine()) != null) {
System.out.println(line);
}
} catch(Exception e1) {}
System.out.println("finished.");
}
}
