NODEJS process info

Question

How to get the process name with a PID (Process ID) in Node.JS program, platform include Mac, Windows, Linux.

Does it has some node modules to do it?

Answer 1

Yes, built-in/core modules process does this:

So, just say var process = require('process'); Then

To get PID (Process ID):

if (process.pid) {   console.log('This process is your pid ' + process.pid); } 

To get Platform information:

console.log('This platform is ' + process.platform); 

Note: You can only get to know the PID of child process or parent process.

---

Updated as per your requirements. (Tested On WINDOWS)

var exec = require('child_process').exec; var yourPID = '1444';  exec('tasklist', function(err, stdout, stderr) {      var lines = stdout.toString().split('\n');     var results = new Array();     lines.forEach(function(line) {         var parts = line.split('=');         parts.forEach(function(items){         if(items.toString().indexOf(yourPID) > -1){         console.log(items.toString().substring(0, items.toString().indexOf(yourPID)));          }         })      }); }); 

On Linux you can try something like:

var spawn = require('child_process').spawn,     cmdd = spawn('your_command'); //something like: 'man ps'  cmdd.stdout.on('data', function (data) {   console.log('' + data); }); cmdd.stderr.setEncoding('utf8'); cmdd.stderr.on('data', function (data) {   if (/^execvp\(\)/.test(data)) {     console.log('Failed to start child process.');   } }); 

Answer 2

On Ubuntu Linux, I tried

var process = require('process'); but it gave error. 

I tried without importing any process module it worked

console.log('This process is your pid ' + process.pid); 

One more thing I noticed we can define name for the process using

process.title = 'node-chat'  

To check the nodejs process in bash shell using following command

ps -aux | grep node-chat