wget with child_process.spawn

output.log

stderr: --2017-05-12 17:21:27--  http://example.com/
Resolving example.com... 93.184.216.34, 2606:2800:220:1:248:1893:25c8:1946
Connecting to example.com|93.184.216.34|:80... 
stderr: connected.

stderr: HTTP request sent, awaiting response... 
stderr: 304 Not Modified

stderr: File ‘~/tmp/index.html’ not modified on server. Omitting download.


exit: 0

test.js

const spawn = require('child_process').spawn;
const cmd = spawn('wget', ['http://example.com', '-N', '-P', '~/tmp']);

cmd.stdout.on('data', (data) => {
      console.log('stdout: ' + data.toString());
});

cmd.stderr.on('data', (data) => {
      console.log('stderr: ' + data.toString());
});

cmd.on('exit', (code) => {
      console.log('exit: ' + code);
});