Java tutorial
//package com.java2s; import java.io.*; public class Main { /** * Run a command and return its output. */ public static String systemOut(String command) throws Exception { int c; String cmd[] = new String[3]; cmd[0] = System.getProperty("SHELL", "/bin/sh"); cmd[1] = "-c"; cmd[2] = command; Process p = Runtime.getRuntime().exec(cmd); BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream())); StringBuilder s = new StringBuilder(); while ((c = r.read()) != -1) s.append((char) c); p.waitFor(); return s.toString(); } }