• Node.js:OS模块


    os模块,可以用来获取操作系统相关的信息和机器物理信息,例如操作系统平台,内核,cpu架构,内存,cpu,网卡等信息。
    使用如下所示:

    const os = require('os');
    
    var dealTime = (seconds)=>{
    	var seconds = seconds|0;
    	var day = (seconds/(3600*24))|0;
    	var hours = ((seconds-day*3600)/3600)|0;
    	var minutes = ((seconds-day*3600*24-hours*3600)/60)|0;
    	var second = seconds%60;
    	(day<10)&&(day='0'+day);
    	(hours<10)&&(hours='0'+hours);
    	(minutes<10)&&(minutes='0'+minutes);
    	(second<10)&&(second='0'+second);
    	return [day,hours,minutes,second].join(':');
    };
    
    var dealMem = (mem)=>{
    	var G = 0,
    		M = 0,
    		KB = 0;
    	(mem>(1<<30))&&(G=(mem/(1<<30)).toFixed(2));
    	(mem>(1<<20))&&(mem<(1<<30))&&(M=(mem/(1<<20)).toFixed(2));
    	(mem>(1<<10))&&(mem>(1<<20))&&(KB=(mem/(1<<10)).toFixed(2));
    	return G>0?G+'G':M>0?M+'M':KB>0?KB+'KB':mem+'B';
    };
    
    //cpu架构
    const arch = os.arch();
    console.log("cpu架构:"+arch);
    
    //操作系统内核
    const kernel = os.type();
    console.log("操作系统内核:"+kernel);
    
    //操作系统平台
    const pf = os.platform();
    console.log("平台:"+pf);
    
    //系统开机时间
    const uptime = os.uptime();
    console.log("开机时间:"+dealTime(uptime));
    
    //主机名
    const hn = os.hostname();
    console.log("主机名:"+hn);
    
    //主目录
    const hdir = os.homedir();
    console.log("主目录:"+hdir);
    
    
    //内存
    const totalMem = os.totalmem();
    const freeMem = os.freemem();
    console.log("内存大小:"+dealMem(totalMem)+' 空闲内存:'+dealMem(freeMem));
    
    //cpu
    const cpus = os.cpus();
    console.log('*****cpu信息*******');
    cpus.forEach((cpu,idx,arr)=>{
    	var times = cpu.times;
    	console.log(`cpu${idx}:`);
    	console.log(`型号:${cpu.model}`);
    	console.log(`频率:${cpu.speed}MHz`);
    	console.log(`使用率:${((1-times.idle/(times.idle+times.user+times.nice+times.sys+times.irq))*100).toFixed(2)}%`);
    });
    
    //网卡
    console.log('*****网卡信息*******');
    const networksObj = os.networkInterfaces();
    for(let nw in networksObj){
    	let objArr = networksObj[nw];
    	console.log(`
    ${nw}:`);
    	objArr.forEach((obj,idx,arr)=>{
    		console.log(`地址:${obj.address}`);
    		console.log(`掩码:${obj.netmask}`);
    		console.log(`物理地址:${obj.mac}`);
    		console.log(`协议族:${obj.family}`);
    	});
    }
    

    执行结果如下:

    E:developmentdocument odejsdemo>node os-example.js
    cpu架构:x64
    操作系统内核:Windows_NT
    平台:win32
    开机时间:00:09:18:08
    主机名:test-PC
    主目录:C:Users est
    内存大小:3.90G 空闲内存:1.42G
    cpu信息**
    cpu0:
    型号:Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz
    频率:3192MHz
    使用率:7.32%
    cpu1:
    型号:Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz
    频率:3192MHz
    使用率:5.80%
    cpu2:
    型号:Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz
    频率:3192MHz
    使用率:6.31%
    cpu3:
    型号:Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz
    频率:3192MHz
    使用率:6.37%
    网卡信息**

    本地连接:
    地址:fe80::c409:72be:75f8:2d01
    掩码:ffff:ffff:ffff:ffff::
    物理地址:40:8d:5c:b8:da:df
    协议族:IPv6
    地址:1.1.1.69
    掩码:255.255.255.0
    物理地址:40:8d:5c:b8:da:df
    协议族:IPv4

    Loopback Pseudo-Interface 1:
    地址:::1
    掩码:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
    物理地址:00:00:00:00:00:00
    协议族:IPv6
    地址:127.0.0.1
    掩码:255.0.0.0
    物理地址:00:00:00:00:00:00
    协议族:IPv4

    6TO4 Adapter:
    地址:2002:101:145::101:145
    掩码:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
    物理地址:00:00:00:00:00:00
    协议族:IPv6

    E:developmentdocument odejsdemo>

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  • 原文地址:https://www.cnblogs.com/zmxmumu/p/6110569.html
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