child-process Questions
1
Solved
When I package an electron app using electron-packager. The app spawns a child process which uses a 'node' command. Now if I try to launch my app in a system with no node installed on it, does the ...
Receptacle asked 9/8, 2018 at 16:15
2
Solved
I have my packaged electron app using electron-packager and I want to run this app in any mac which doesn't have node installed. I was suggested that electron-packager bundles the node into m...
Bolding asked 7/8, 2018 at 15:6
1
The following code run fine on JPEG, Docx, zip and several other file formats. Then I try is on mpg-filer however, I am hit by a "Error: write EPIPE" that I am unable to debug. Using a try/catch co...
Lyndseylyndsie asked 14/8, 2018 at 10:28
1
Solved
I'm trying to run a shell command inside of a gulp task using child_process.spawn.
I have to detect when the task is done running so I'm using stdout to check for a specific string that I emit at ...
Malnutrition asked 6/8, 2018 at 21:23
2
Solved
I'm testing the plus_one app, and while running it, I just wanted to clarify my concepts on event.once() and event.on()
This is plus_one.js
> process.stdin.resume();
process.stdin.on('data',fu...
Plantaineater asked 11/9, 2013 at 11:38
1
Solved
I have the following script which executes a shell command:
#!/usr/bin/env node
const { execSync } = require('child_process');
try {
const data = execSync(
'yarn licenses generate-disclaimer -...
Marjoram asked 18/10, 2017 at 20:18
1
Solved
I'm using Node's childProcess module to try and run NPM tasks.
When I do the following, everything works file:
const child = childProcess.spawn('npm', ['run', taskName], {
cwd: `${parentPath}/$...
Beker asked 2/6, 2018 at 22:32
3
I know there is a api process.memoryUsage() to get memory usage in current process.
But if I start a new child process by child_process.spawn(command, [args], [options]) and I get a ChildProcess o...
Brilliant asked 24/5, 2012 at 2:39
1
Solved
I am attempting to stream output from a weighing scale that is written in python. This program (scale.py) runs continuously and prints the raw value every half second.
import RPi.GPIO as GPIO
impo...
Schema asked 20/4, 2018 at 18:2
1
Solved
Consider the following code:
import {spawn, exec} from 'child_process';
var child = spawn('su',
[process.env.USER, '-c', 'while (true); do sleep 0.3; echo "tick"; done'],
{stdio: ['ig...
Omeromero asked 21/1, 2015 at 15:25
2
Solved
I have a Node script that calls an external program (PluginManager.exe) this way:
const util = require('util');
const execFile = util.promisify(require('child_process').execFile);
const process =...
Mulcahy asked 4/4, 2018 at 16:42
2
Solved
I'm supposed to return the sum of first 12 terms of Fibonacci series from child process to parent one but instead having 377, parent gets 30976.
#include <stdio.h>
#include <unistd.h>
...
Felike asked 30/3, 2018 at 20:57
2
Hi I am using child_process.spwan to start a child process running a python script on Windows. The script listens on SIGINT to gracefully exits itself. But Windows does not support signals and all ...
Indult asked 18/10, 2016 at 20:33
1
I'm trying to write a Task control program, very much like Supervisor.
I run some programs from a config file and let them run in the background, while in the main process I read and execute other...
Interpenetrate asked 15/1, 2018 at 14:59
1
Solved
I want to create a square thumbnail when a image was uploaded to cloud storage in firebase. I just want the center of the image cropped out in square, and have it resize it to 150px x 150px.
Someth...
Thermosetting asked 26/11, 2017 at 20:54
1
Solved
I have an electron app where I need not only to run the interface to the user but also start an express server that will serve files for people connected through the network.
I have everything wor...
Grison asked 3/10, 2017 at 22:55
1
Solved
How to print the stdout from console.log(require("child_process").execSync('ls'))
I tried in ts
import { execSync } from 'child_process';
console.log(execSync('ls -la'));
which was then compile...
Propose asked 29/9, 2017 at 5:40
3
Solved
Here are my files:
.
├── app.js
├── res.cls
└── res.tex
And here is the relevant contents of my app.js file:
const { spawn } = require('child_process')
const latex = spawn('pdflatex', ['res.tex...
Neelyneeoma asked 10/1, 2017 at 2:48
0
In the browser, it is way faster to send buffers instead of regular arrays. This is done in the following way:
// create data that can be transfered
var myData = [1,3,5,78,1,2,45,6,5,12];
var buff...
Voice asked 6/8, 2017 at 15:12
2
Solved
I want to be able to take a command string, for example:
some/script --option="Quoted Option" -d --another-option 'Quoted Argument'
And parse it into something that I can send to child_process.s...
Leix asked 6/5, 2014 at 6:27
1
Solved
I'm building an Electron application (Node.js) which needs to spawn gcloud app deploy from the application with realtime feedback (stdin/stdout/stderr).
I rapidly switched from child_process to ex...
Fluky asked 29/6, 2017 at 8:42
2
I use child_process.exec to run npm init, I can let it create package.json, but after creating, my stdin seems still open, I want to know when my child process finished so I maybe close the stdin, ...
Nestle asked 1/3, 2015 at 10:1
1
Solved
I am trying to write a simple node.js application in order to run selenium in a dedicate shell and then close the shell and the corresponding child process (at the moment after a timeout of 5 secon...
Cantaloupe asked 16/5, 2017 at 17:20
1
Here I am using fork method to do some calculation in node js. I have followed by the answer in link.It worked as expected and had started to do calculation.
Here how can I get the details from th...
Boyt asked 19/4, 2017 at 8:19
1
I'm spawning a child process using Node 6.9.
const child = require('child_process').execFile('command', args);
child.stdout.on('data', (data) => {
console.log('child:', data);
});
child.stder...
Matthia asked 13/4, 2017 at 21:18
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