help me with this task :
Create a magic file school.mgc that can be used with the command file to detect School data files. School data files always contain the string SCHOOL at offset 0.

the example : 

ubuntu@ip-172-31-63-244:/tmp/magic$ cp /bin/ls .
ubuntu@ip-172-31-63-244:/tmp/magic$ ls -la
total 268
drwxrwxr-x 2 ubuntu ubuntu 4096 Sep 20 02:44 .
drwxrwxrwt 11 root root 139264 Sep 20 02:44 ..
-rw-r--r-- 1 ubuntu ubuntu 496 Sep 20 02:42 school.mgc
-rwxr-xr-x 1 ubuntu ubuntu 110080 Sep 20 02:43 ls
-rw-rw-r-- 1 ubuntu ubuntu 50 Sep 20 02:06 thisisaschoolfile
-rw-rw-r-- 1 ubuntu ubuntu 30 Sep 20 02:16 thisisatextfile
ubuntu@ip-172-31-63-244:/tmp/magic$ file --mime-type -m school.mgc \*
school.mgc: application/octet-stream
ls: application/octet-stream
thisisaschoolfile: School
thisisatextfile: text/plain
ubuntu@ip-172-31-63-244:/tmp/magic$ file -m school.mgc \*
school.mgc: data
ls: data
thisisaschoolfile: School data
thisisatextfile: ASCII text
ubuntu@ip-172-31-63-244:/tmp/magic$
user
Sure, I'd be happy to help you create a magic file for your School data files. A magic file is a file format used by the Unix `file` command to identify the type of data in a file.

First, open a text editor like Notepad++ or Sublime Text and create a new file named `school.mgc` in the same directory as your other files.

Inside the new file, add the following line:

```
0
magic
text
follow
0
```

This line specifies that the magic number is located at offset 0 (first byte), the next two words are actually "magic" and "text", and you want to follow the line with more data.

Now, add another line for your School data:

```
0
SCHOOL
code
```

This line specifies that the magic number is also located at offset 0, but the new magic number is "SCHOOL". The "code" tells the `file` command that it's a string of bytes, not a regular file.

Save the file and test it by running this command:

```bash
$ file -m school.mgc your_school_file.ext
```

This will use the `school.mgc` file to detect whether `your_school_file.ext` is a School file or not. If it is, it should output "School data" as its MIME type.
assistant
help me with this task :
Create a magic file school.mgc that can be used with the command file to detect School data files. School data files always contain the string SCHOOL at offset 0.

the example : 

ubuntu@ip-172-31-63-244:/tmp/magic$ cp /bin/ls .
ubuntu@ip-172-31-63-244:/tmp/magic$ ls -la
total 268
drwxrwxr-x 2 ubuntu ubuntu 4096 Sep 20 02:44 .
drwxrwxrwt 11 root root 139264 Sep 20 02:44 ..
-rw-r--r-- 1 ubuntu ubuntu 496 Sep 20 02:42 school.mgc
-rwxr-xr-x 1 ubuntu ubuntu 110080 Sep 20 02:43 ls
-rw-rw-r-- 1 ubuntu ubuntu 50 Sep 20 02:06 thisisaschoolfile
-rw-rw-r-- 1 ubuntu ubuntu 30 Sep 20 02:16 thisisatextfile
ubuntu@ip-172-31-63-244:/tmp/magic$ file --mime-type -m school.mgc \*
school.mgc: application/octet-stream
ls: application/octet-stream
thisisaschoolfile: School
thisisatextfile: text/plain
ubuntu@ip-172-31-63-244:/tmp/magic$ file -m school.mgc \*
school.mgc: data
ls: data
thisisaschoolfile: School data
thisisatextfile: ASCII text
ubuntu@ip-172-31-63-244:/tmp/magic$
user
Sure, I can guide you on how to create a magic file that can be used with the `file` command to detect School data files.

The `file` command in Unix-like operating systems uses a database of magic numbers to identify the type of data contained in a file. This database is typically located at `/usr/share/file/magic` or `/usr/share/misc/magic`.

Here's how you can create a custom magic file:

1. Open a new file named `school.mgc` in your preferred text editor. You can use `nano`, `vim`, or any other text editor you're comfortable with. For example:

   ```
   nano school.mgc
   ```

2. In this file, you need to specify the magic number for your School data files. Since you mentioned that School data files always contain the string `SCHOOL` at offset 0, you can add the following line to your `school.mgc` file:

   ```
   0 string SCHOOL School data
   ```

   This line tells the `file` command that if it finds the string `SCHOOL` at the beginning of a file (offset 0), it should identify the file as `School data`.

3. Save and close the file.

4. Now, you can use the `file` command with your custom magic file to identify School data files. For example:

   ```
   file -m school.mgc thisisaschoolfile
   ```

   This command will identify the file `thisisaschoolfile` using the magic numbers specified in `school.mgc`.

5. If you want to identify all files in the current directory, you can use the `*` wildcard:

   ```
   file -m school.mgc *
   ```
assistant