The tutorial provides the node.js OS module details. The node.js OS module provides the operating system related utilities and methods for the usage in the node.js application.

Node.js OS module Syntax

The node.js OS module can be accessed by adding the below given command:

const os = require('os');

The below given are the available operating system methods and utilities

Node.js os.EOL example

os.EOL – indicates the operating system end of line specifier .

os.EOL Examples:

\n on POSIX
\r\n on Windows

Save the below commands in the file nodejs_os.js and run it

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()); 

Node.js os signal constants

Indicates commonly used operating system-specific constants for error codes, process signals. The below given are the node.js OS Signal constant exported by os.constants.signals

The below given are the node.js OS Signal constant

Node.js OS Priority Constants

The below given process scheduling constants are exported by os.constants.priority

References

node.js OS Reference Link