Library /sys$common/syshlp/dns$cphelp.hlb replace, subtree, example  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 The following command deletes the entries in the directory
 .sales.quar1 and replaces them with soft links whose targets are
 their corresponding entries in .total.quar1 .

 dns> replace subtree .sales.quar1 with link .total.quar1