code: function linux(canary) {
    let installations = [];
  
    // Look into the directories where .desktop are saved on gnome based distro's
    const desktopInstallationFolders = [
      path.join(require('os').homedir(), '.local/share/applications/'),
      '/usr/share/applications/',
    ];
    desktopInstallationFolders.forEach(folder => {
      installations = installations.concat(findChromeExecutables(folder));
    });
  
    // Look for google-chrome(-stable) & chromium(-browser) executables by using the which command
    const executables = [
      'google-chrome-stable',
      'google-chrome',
      'chromium-browser',
      'chromium',
    ];
    executables.forEach(executable => {
      try {
        const chromePath =
            execFileSync('which', [executable], {stdio: 'pipe'}).toString().split(newLineRegex)[0];
        if (canAccess(chromePath))
          installations.push(chromePath);
      } catch (e) {
        // Not installed.
      }
    });
  
    if (!installations.length)
      throw new Error('The environment variable CHROME_PATH must be set to executable of a build of Chromium version 54.0 or later.');
  
    const priorities = [
      {regex: /chrome-wrapper$/, weight: 51},
      {regex: /google-chrome-stable$/, weight: 50},
      {regex: /google-chrome$/, weight: 49},
      {regex: /chromium-browser$/, weight: 48},
      {regex: /chromium$/, weight: 47},
    ];
  
    if (process.env.CHROME_PATH)
      priorities.unshift({regex: new RegExp(`${process.env.CHROME_PATH}`), weight: 101});
  
    return sort(uniq(installations.filter(Boolean)), priorities)[0];
  }
docs: Look for linux executables in 3 ways
  1. Look into CHROME_PATH env variable
  2. Look into the directories where .desktop are saved on gnome based distro's
  3. Look for google-chrome-stable & google-chrome executables by using the which command