VMS Help NCS Command, Command Qualifiers, /LOG  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  /LOG
  /NOLOG

   Use this qualifier to have  NCS  verify  a  library  operation.  For
   example, if you specify the /LOG  qualifier  when  you  delete  the
   definition module FOO, NCS displays a message like this:

     %NCS-S-DELETED, module FOO deleted