Node.js built-in os module returns basic server operating system information.
To get started with os module, first create os.js file and import module on the top of file.
// import os module
const os = require('os');
Now you can use os module to get system information as below. os.type() method returns operating system type:
const sys = os.type(); // Linux
Below is the list of methods and properties of os module you can use and get system information.
| Method | Description | Example |
|---|---|---|
| os.EOL | The operating system-specific end-of-line marker. | \n |
| os.arch() | Returns the operating system CPU architecture | x64 |
| os.constants | Contains commonly used operating system-specific constants for error codes, process signals, and so on. | Object |
| os.cpus() | Returns an array of objects containing information about each logical CPU core. | Object[] |
| os.endianness() | Returns a string identifying the endianness of the CPU for which the Node.js binary was compiled. | LE |
| os.freemem() | Returns the amount of free system memory in bytes as an integer. | 10787278701 |
| os.homedir() | Returns the string path of the current user's home directory. | /home/jitesh |
| os.hostname() | Returns the host name of the operating system as a string. | jitesh-dell-inspiron-3450 |
| os.networkInterfaces() | Returns an object containing network interfaces that have been assigned a network address. | Object |
| os.platform() | Returns a string identifying the operating system platform. | linux |
| os.release() | Returns information about the operating system's release | Fatal |
| os.tmpdir() | Returns the operating system's default directory for temporary files as a string. | /tmp |
| os.totalmem() | Returns the total amount of system memory in bytes as an integer. | 20772641575 |
| os.type() | Returns the name of the operating system | Linux |
| os.uptime() | Returns the system uptime in number of seconds. | 29980.42 |
| os.userInfo() | Returns information about the current user | Object |
| os.version() | Returns a string identifying the kernel version. | #29~20.04.1-Ubuntu SMP Wed Aug 11 12:58:17 UTC 2021 |
I hope it will help you.
