@since: 2.7.0

Checks if a file or directory exists.

Checks if resource is a file.

Checks if resource is a directory.

Checks if a file is readable.

Checks if a file or directory is writable.

Gets the file’s last access time.

Gets the file modification time.

Changes the file group.

Gets the file size (in bytes).

Changes filesystem permissions.

Sets the access and modification times of a file.

Changes the owner of a file or directory.

Creates a directory.

Gets the file owner.

Deletes a directory.