java调用shell命令，备忘

直接看代码：

 

String[] envp = new String[]{""};
File dataDir = new File("/home/data");
String cmd = "gunzip " + copyGzFilename;
Process p = rt.exec(new String[]{sh, c, cmd}, envp, dataDir); //解压缩备份文件
if(p.waitFor() == 0){ //0 表示命令执行成功;1 表示命令语法错误;2 表示命令执行错误
	BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
	String line = "";
	while((line = reader.readLine()) != null){
		System.out.println(line);
	}
}else{
	log.Debug("", "在解压缩备份文件时出错！");
	continue;
}