Node.js process.geteuid() Method

The process.geteuid() method is an inbuilt application programming interface of the process module which is used to get the numerical effective user identity of the Node.js process.

Syntax:

process.geteuid()

Parameters: This method does not accept any parameters.

Return Value: This method returns an object specifying the numerical effective user identity of the Node.js process.

Note: This method will only work on POSIX platforms. Not available on windows or android platforms so will cause an error i.e. TypeError, geteuid is not a function.

Below examples illustrate the use of process.geteuid() method in Node.js:

Example 1:

// Node.js program to demonstrate the      
// process.geteuid() method   
   
// Include process module 
const process = require('process'); 
  
// Printing the numerical effective 
// user identity of the Node.js process 
console.log(process.geteuid()); 

Output:

Example 2:

// Node.js program to demonstrate the      
// process.geteuid() method   
   
// Include process module 
const process = require('process'); 
  
// Check whether the method exists or not 
if (process.geteuid) { 
    
  // Printing geteuid() value 
  console.log("The numerical effective user "
          + "identity of the Node.js process:"
          + process.geteuid()); 
} 

Output:

The numerical effective user identity of the Node.js process: 6693036

Note: The above program will compile and run by using the node filename.js command.

Reference: https://nodejs.org/api/process.html#process_process_geteuid

Tags:

#Node.js-process-module #Node.js #Web Technologies

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