public/subjects/ascii-art/reverse/README.md

## ascii-reverse

### Objectives

You must follow the same [instructions](../README.md) as in the first subject but this time the process will be reversed. desrever fo dnik siht toN.

Ascii-reverse consists on reversing the process, converting the graphic representation into a text. You will have to create a text file containing a graphic representation of a random `string` given as an argument.

The argument will be a **flag**, `--reverse=<fileName>`, in which `--reverse` is the flag and `<fileName>` is the file name. The program must then print this `string` in **normal text**.

- The flag must have exactly the same format as above, any other formats must return the following usage message:

```console
Usage: go run . [OPTION]

EX: go run . --reverse=<fileName>
```

### Instructions

- Your project must be written in **Go**.
- The code must respect the [**good practices**](../../good-practices/README.md).
- It is recommended to have **test files** for [unit testing](https://go.dev/doc/tutorial/add-a-test).

### Usage

```console
$ cat file.txt
 _              _   _          $
| |            | | | |         $
| |__     ___  | | | |   ___   $
|  _ \   / _ \ | | | |  / _ \  $
| | | | |  __/ | | | | | (_) | $
|_| |_|  \___| |_| |_|  \___/  $
                               $
                               $
$
$ go run . --reverse=file.txt
hello
$
```

### Allowed packages

- Only the [standard Go](https://golang.org/pkg/) packages are allowed.

This project will help you learn about :

- The Go file system(**fs**) API
- Data manipulation