docs: function envFileContent(cmdOptions) {
    var filePath, envFiles;
    var fileContent = '';
    if (cmdOptions.env) {
      envFiles = cmdOptions.env.split(',');
      for (var i = 0; i < envFiles.length; i++ ) {
        filePath = path.normalize(envFiles[i]);
        if (fs.existsSync(filePath)) {
  	fileContent += fs.readFileSync(filePath, 'utf8');
  	fileContent += "\n";
        }
      }
    } else if (fs.existsSync(parser.cmdWorkingDir(cmdOptions) + '/.env')) {
      filePath = parser.cmdWorkingDir(cmdOptions) + '/.env';
      fileContent = fs.readFileSync(filePath, 'utf8');
    }
  
    return fileContent;
  }