Export html files to plain and a clean text file

html2txt.js

// Usage: node html2txt.js file
// example recursive: find . -name "*.html" -exec node html2txt.js.js {} \; >> out.txt

var { Readability } = require('@mozilla/readability');
var { JSDOM } = require('jsdom');
var fs = require('fs');
file = process.argv[2];

try {  
  let data = fs.readFileSync(file, 'utf8');   
  let doc = new JSDOM(data.toString());
  let reader = new Readability(doc.window.document);
  let article = reader.parse();
  console.log(article.textContent.trim().replace(/[\s]{2,}/g, ' '));
} catch(e) {
  process.exit(-1);
}  
process.exit(0);