connect([$config = array()])

delete_dir($filepath)

move($old_file, $new_file)

changedir($path[, $suppress_debug = FALSE])

download($rempath, $locpath[, $mode = 'auto'])

upload($locpath, $rempath[, $mode = 'auto'[, $permissions = NULL]])

class CI_FTP connect([$config = array()])

list_files([$path = '.'])

rename($old_file, $new_file[, $move = FALSE])

chmod($path, $perm)