Recovery file from .CHK

file-recovery.js

const fs = require("fs");
const { exec } = require("child_process");

const files = fs.readdirSync(__dirname);

files
  .filter((i) => i.endsWith(".CHK"))
  .forEach((i) => {
    exec("file " + i, (err, stdout, stderr) => {
      if (stdout.includes("JPEG")) {
        exec("mv " + i + " " + i.replace(".CHK", ".jpg"));
        return;
      }

      if (stdout.includes("PNG")) {
        exec("mv " + i + " " + i.replace(".CHK", ".png"));
        return;
      }

      if (stdout.includes("MP4")) {
        exec("mv " + i + " " + i.replace(".CHK", ".mp4"));
        return;
      }

      if (stdout.includes("Excel")) {
        exec("mv " + i + " " + i.replace(".CHK", ".xls"));
        return;
      }

      if (stdout.includes("PDF")) {
        exec("mv " + i + " " + i.replace(".CHK", ".pdf"));
        return;
      }

      if (stdout.includes("executable")) {
        exec("mv " + i + " " + i.replace(".CHK", ".exe"));
        return;
      }
      console.log(stdout);
    });
  });