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

       /CONTINUOUS/INTERVAL=n

    Upon reaching the end of a file, TYPE waits a specified number
    of seconds (the default is 30) then displays any records which
    have been added to the file and returns to the wait state. TYPE
    continues until either Ctrl/C or Ctrl/Y is entered by the user.