Node.js OS Module

Node.js OS Module

The Node.js OS module provides useful utility functions that interact with the operating system. These methods help developers access information such as CPU details, memory usage, network interfaces, and system uptime, making it easier to build system-aware applications.

In this article, we’ll explore some of the most commonly used OS methods in Node.js.

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Frequently Used Node.js OS Methods

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Node.js OS Example 1

In the first example, let’s try out some of the basic OS functions.

File: os_example1.js

const os = require('os');  

console.log("os.freemem(): \n", os.freemem());  
console.log("os.homedir(): \n", os.homedir());  
console.log("os.hostname(): \n", os.hostname());  
console.log("os.endianness(): \n", os.endianness());  
console.log("os.loadavg(): \n", os.loadavg());  
console.log("os.platform(): \n", os.platform());  
console.log("os.release(): \n", os.release());  
console.log("os.tmpdir(): \n", os.tmpdir());  
console.log("os.totalmem(): \n", os.totalmem());  
console.log("os.type(): \n", os.type());  
console.log("os.uptime(): \n", os.uptime());  

Run the file using:

node os_example1.js

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Node.js OS Example 2

In the second example, we’ll look at the remaining methods.

File: os_example2.js

const os = require('os');  

console.log("os.cpus(): \n", os.cpus());  
console.log("os.arch(): \n", os.arch());  
console.log("os.networkInterfaces(): \n", os.networkInterfaces());  

Run the file using:

node os_example2.js

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Final Thought

The Node.js OS module is a handy tool when you need to fetch system-level information directly in your application. Whether you are building monitoring tools, optimizing resource usage, or simply learning how your system interacts with Node.js, these methods provide a solid foundation.

Stay tuned to UpdateGadh for more practical Node.js tutorials.

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