### Writing a CPIO archive with UnixInMemoryFileSystem

Source: https://github.com/xenoatom/xenoatom.unixtools/blob/main/readme.md

Creates an in-memory file system, adds directories and a file, then writes the file system to a CPIO archive using CpioWriter. The writer is disposed after writing.

```csharp
var stream = new MemoryStream();
var fs = new UnixInMemoryFileSystem();
fs.CreateDirectory("/dir1");
fs.CreateDirectory("/dir1/dir2");
fs.CreateFile("/dir1/file1.txt", "Hello World");
{
    using var writer = new CpioWriter(File.Create("archive.cpio"));
    fs.WriteTo(writer);
}
```

--------------------------------

### Reading a CPIO archive with CpioReader

Source: https://github.com/xenoatom/xenoatom.unixtools/blob/main/readme.md

Opens a CPIO archive file and iterates through its entries, printing each entry's name, file type, and mode. The reader is used in a while loop with TryGetNextEntry.

```csharp
var cpioReader = new CpioReader(File.OpenRead("archive.cpio"));
while (cpioReader.TryGetNextEntry(out var entry))
{
    Console.WriteLine($"Entry: {entry.Name} {entry.FileType} ({entry.Mode})");
})
```