public FileSystem::dirname($uri) Gets

public FileSystem::validScheme($scheme) Checks

The file logger channel. Type: \Psr\Log\LoggerInterface File

public FileSystem::unlink($uri, $context = NULL) Deletes

public FileSystem::__construct(StreamWrapperManagerInterface $stream_wrapper_manager

public FileSystem::realpath($uri) Resolves

The site settings. Type:

Default mode for new directories. See self::chmod(). File core/lib/Drupal/Core/File/FileSystem.php, line

public FileSystem::moveUploadedFile($filename, $uri)