# F

The `F` class provides methods for dealing with files on the file system level, like creating, reading, deleting, copying or validatings files.

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- Full class name: `Kirby\Filesystem\F`
- Alias: `F`
- Source: <https://github.com/getkirby/kirby/tree/5.5.3/src/Filesystem/F.php#L26>

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### F

- [F::append()](https://getkirby.com/docs/reference/objects/filesystem/f/append.md)
- [F::base64()](https://getkirby.com/docs/reference/objects/filesystem/f/base64.md)
- [F::copy()](https://getkirby.com/docs/reference/objects/filesystem/f/copy.md)
- [F::dirname()](https://getkirby.com/docs/reference/objects/filesystem/f/dirname.md)
- [F::exists()](https://getkirby.com/docs/reference/objects/filesystem/f/exists.md)
- [F::extension()](https://getkirby.com/docs/reference/objects/filesystem/f/extension.md)
- [F::extensionToMime()](https://getkirby.com/docs/reference/objects/filesystem/f/extension-to-mime.md)
- [F::extensionToType()](https://getkirby.com/docs/reference/objects/filesystem/f/extension-to-type.md)
- [F::extensions()](https://getkirby.com/docs/reference/objects/filesystem/f/extensions.md)
- [F::filename()](https://getkirby.com/docs/reference/objects/filesystem/f/filename.md)
- [F::invalidateOpcodeCache()](https://getkirby.com/docs/reference/objects/filesystem/f/invalidate-opcode-cache.md)
- [F::is()](https://getkirby.com/docs/reference/objects/filesystem/f/is.md)
- [F::isReadable()](https://getkirby.com/docs/reference/objects/filesystem/f/is-readable.md)
- [F::isWritable()](https://getkirby.com/docs/reference/objects/filesystem/f/is-writable.md)
- [F::link()](https://getkirby.com/docs/reference/objects/filesystem/f/link.md)
- [F::load()](https://getkirby.com/docs/reference/objects/filesystem/f/load.md)
- [F::loadClasses()](https://getkirby.com/docs/reference/objects/filesystem/f/load-classes.md)
- [F::loadOnce()](https://getkirby.com/docs/reference/objects/filesystem/f/load-once.md)
- [F::mime()](https://getkirby.com/docs/reference/objects/filesystem/f/mime.md)
- [F::mimeToExtension()](https://getkirby.com/docs/reference/objects/filesystem/f/mime-to-extension.md)
- [F::mimeToType()](https://getkirby.com/docs/reference/objects/filesystem/f/mime-to-type.md)
- [F::modified()](https://getkirby.com/docs/reference/objects/filesystem/f/modified.md)
- [F::move()](https://getkirby.com/docs/reference/objects/filesystem/f/move.md)
- [F::name()](https://getkirby.com/docs/reference/objects/filesystem/f/name.md)
- [F::niceSize()](https://getkirby.com/docs/reference/objects/filesystem/f/nice-size.md)
- [F::range()](https://getkirby.com/docs/reference/objects/filesystem/f/range.md)
- [F::read()](https://getkirby.com/docs/reference/objects/filesystem/f/read.md)
- [F::realpath()](https://getkirby.com/docs/reference/objects/filesystem/f/realpath.md)
- [F::relativepath()](https://getkirby.com/docs/reference/objects/filesystem/f/relativepath.md)
- [F::remove()](https://getkirby.com/docs/reference/objects/filesystem/f/remove.md)
- [F::rename()](https://getkirby.com/docs/reference/objects/filesystem/f/rename.md)
- [F::safeBasename()](https://getkirby.com/docs/reference/objects/filesystem/f/safe-basename.md)
- [F::safeExtension()](https://getkirby.com/docs/reference/objects/filesystem/f/safe-extension.md)
- [F::safeName()](https://getkirby.com/docs/reference/objects/filesystem/f/safe-name.md)
- [F::similar()](https://getkirby.com/docs/reference/objects/filesystem/f/similar.md)
- [F::size()](https://getkirby.com/docs/reference/objects/filesystem/f/size.md)
- [F::type()](https://getkirby.com/docs/reference/objects/filesystem/f/type.md)
- [F::typeToExtensions()](https://getkirby.com/docs/reference/objects/filesystem/f/type-to-extensions.md)
- [F::unlink()](https://getkirby.com/docs/reference/objects/filesystem/f/unlink.md)
- [F::unzip()](https://getkirby.com/docs/reference/objects/filesystem/f/unzip.md)
- [F::update()](https://getkirby.com/docs/reference/objects/filesystem/f/update.md)
- [F::uri()](https://getkirby.com/docs/reference/objects/filesystem/f/uri.md)
- [F::write()](https://getkirby.com/docs/reference/objects/filesystem/f/write.md)