Java运行linux和windows系统命令

在java中运行系统命令的代码：

package executiveUnixCmd;

import java.io.BufferedReader;

import java.io.InputStream;

import java.io.InputStreamReader;

    public class ExecutiveCmd {

        public static void main(String[] args) {

            InputStream in = null;

            String res = "";

            String line = null;

            try {

                //Process pro = Runtime.getRuntime().exec("C:\\Windows\\System32\\ping www.baidu.com");

                Process pro = Runtime.getRuntime().exec(new String[]{"sh", "-c", "ls -l|grep ^d"});

                pro.waitFor();

                in = pro.getInputStream();

                BufferedReader read = new BufferedReader(new InputStreamReader(in));

                while ((line = read.readLine()) != null) {

                    res += line + "\r\n";

                }

                System.out.println("INFO:" + res);

            } catch (Exception e) {

                e.printStackTrace();

            }

        }

    }