Whether and how to do recursive file management. Options are:
inf,true — Regular style recursion on both remote and local directory structure. See recurselimit to specify a limit to the recursion depth.
remote — Descends recursively into the remote (source) directory but not the local (destination) directory. Allows copying of a few files into a directory containing many unmanaged files without scanning all the local files. This can only be used when a source parameter is specified.
false — Default of no recursion.
Valid values are true, false, inf, remote.