// Override the logger os.Exit()
		logger.ExitFunc = freeze

		defer func() {
			if err := recover(); err != nil {
				fmt.Println("panic:", err)
				fmt.Println("")
				fmt.Println(string(debug.Stack()))
			}
			freeze(-1)
		}()
	}

	// Run the app - exit on error.
	if err := newApp(appName).Run(args); err != nil {
		os.Exit(1) //nolint:gocritic
	}

	// Backup any already existing output file
	_, err := os.Stat(outputFileName)
	if err == nil {
		err := os.Rename(outputFileName, outputFileName+"."+time.Now().Format("20060102150405"))
		if err != nil {
			fatalErr(err)
		}
	}

	// Open the input and create the output file
	input, err := os.Open(inputFileName)
	fatalErr(err)
	defer input.Close()
	output, err := os.Create(outputFileName)
	fatalErr(err)