Skip to main content

Spawning top with arguments and parsing with grep

I want to spawn top with a few arguments to get the current cpu load & usage.
If I type the full command on my ssh session top -bn1 | grep "Cpu(s)\|top -", I get the complete and working response.
But how is the correct way to spawn this command with execFile?

This is what I want to do:

import childProcess from 'child_process'
import util from 'util'

const execFile = util.promisify(childProcess.execFile)

async function getData() {
    // Not working
    const command = 'top -bn1 | grep "Cpu(s)\|top -"'
    const args = []
    
    // Also tried this
    const command = 'top'
    const args = ['-bn1 | grep "Cpu(s)\|top -"']
    
    const { stdout } = await execFile(command, args, { maxBuffer: 1000 * 1000 * 10 })
    console.log(stdout)
}
getData()

But the spawn will fail with the following error:

Error: spawn top -bn1 | grep "Cpu(s)|top -" ENOENT
    at Process.ChildProcess._handle.onexit (node:internal/child_process:282:19)
    at onErrorNT (node:internal/child_process:480:16)
    at processTicksAndRejections (node:internal/process/task_queues:83:21) {
  errno: -2,
  code: 'ENOENT',
  syscall: 'spawn top -bn1 | grep "Cpu(s)|top -"',
  path: 'top -bn1 | grep "Cpu(s)|top -"',
  spawnargs: [],
  cmd: 'top -bn1 | grep "Cpu(s)|top -"',
  stdout: '',
  stderr: ''
}
Via Active questions tagged javascript - Stack Overflow https://ift.tt/2FdjaAW
Labels:

Comments

Post a Comment

Popular posts from this blog

Prop `className` did not match in next js app

I have written a sample code ( Github Link here ). this is a simple next js app, but giving me error when I refresh the page. This seems to be the common problem and I tried the fix provided in the internet but does not seem to fix my issue. The error is Warning: Prop className did not match. Server: "MuiBox-root MuiBox-root-1" Client: "MuiBox-root MuiBox-root-2". Did changes for _document.js, modified _app.js as mentioned in official website and solutions in stackoverflow. but nothing seems to work. Could someone take a look and help me whats wrong with the code? Via Active questions tagged javascript - Stack Overflow https://ift.tt/2FdjaAW
Post a Comment
Read more

How to show number of registered users in Laravel based on usertype?

i'm trying to display data from the database in the admin dashboard i used this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count(); echo $users; ?> and i have successfully get the correct data from the database but what if i want to display a specific data for example in this user table there is "usertype" that specify if the user is normal user or admin i want to user the same code above but to display a specific usertype i tried this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count()->WHERE usertype =admin; echo $users; ?> but it didn't work, what am i doing wrong? source https://stackoverflow.com/questions/68199726/how-to-show-number-of-registered-users-in-laravel-based-on-usertype
Post a Comment
Read more

Why is my reports service not connecting?

I am trying to pull some data from a Postgres database using Node.js and node-postures but I can't figure out why my service isn't connecting. my routes/index.js file: const express = require('express'); const router = express.Router(); const ordersCountController = require('../controllers/ordersCountController'); const ordersController = require('../controllers/ordersController'); const weeklyReportsController = require('../controllers/weeklyReportsController'); router.get('/orders_count', ordersCountController); router.get('/orders', ordersController); router.get('/weekly_reports', weeklyReportsController); module.exports = router; My controllers/weeklyReportsController.js file: const weeklyReportsService = require('../services/weeklyReportsService'); const weeklyReportsController = async (req, res) => { try { const data = await weeklyReportsService; res.json({data}) console
Post a Comment
Read more