java 执行linux命令

原文地址：
http://blog.csdn.net/xh16319/article/details/17302947
 1 package scut.cs.cwh;
 2 
 3 import java.io.InputStreamReader;
 4 import java.io.LineNumberReader;
 5 
 6 public class ExecLinuxCMD {
 7 
 8     public static Object exec(String cmd) {
 9         try {
10             String[] cmdA = { "/bin/sh", "-c", cmd };
11             Process process = Runtime.getRuntime().exec(cmdA);
12             LineNumberReader br = new LineNumberReader(
13                     new InputStreamReader(process
14                             .getInputStream()));
15             StringBuffer sb = new StringBuffer();
16             String line;
17             while ((line = br.readLine()) != null) {
18                 System.out.println(line);
19                 sb.append(line).append("
");
20             }
21             return sb.toString();
22         } catch (Exception e) {
23             e.printStackTrace();
24         }
25         return null;
26     }
27 
28     public static void main(String[] args) {
29         // TODO Auto-generated method stub
30         String rst = exec("ls").toString();
31         
32         System.out.println(rst);
33     }
34 
35 }