node.js 的 os 模块

　　Node.js的os module 提供了一系列跟操作系统相关的操作函数，比较简单，所以功能也就十分有限。我们可以去官网看各个函数的介绍：

　　http://nodejs.org/api/os.html

 var os = require('os');

 console.log('the os tmpdir is: ' + os.tmpdir());
 console.log('the endianness of this os is: ' + os.endianness());
 console.log('the hostname of this os is: ' + os.hostname());
 console.log('the type of this os is: ' + os.type());
 console.log('the platform of this os is: ' + os.platform());
 console.log('the arch of this os is: ' + os.arch());
 console.log('the release of the os is: ' + os.release());
 console.log('the uptime os the os is: ' + os.uptime());

 console.log('the end of line of this os is: ' + os.EOL);  //os.EOL：操作系统的换行符
 console.log('................................................');
 console.log('................................................');
 showObj(os.cpus());
 console.log('................................................');
 console.log('................................................');
 showObj(os.networkInterfaces());
 console.log('................................................');
 console.log('................................................');
 showObj(os.loadavg());

 function showObj(obj){
     if (obj == null) {
         console.log('error: ' + obj);
         return false;
     }
     for (var key in obj)    {
         //key is a string, so we cannot use obj.key to replace obj[key] at here. For example, if name is a property of obj:
　　　　　　//(obj.name is right, but obj."name" is wrong.)
　　　　　　//(obj["name"] is right, but obj[name] is wrong.)
         if (typeof(obj[key]) == 'array' || typeof(obj[key]) == 'object') {
             showObj(obj[key]);
         } else {
             if (obj[key] != null)
                 console.log(key + "=" + obj[key]);
         }
     }
 }

参考博客地址：http://blog.csdn.net/simpleiseasy/article/details/7253429