Library /sys$common/syshlp/latcp$help.hlb ATTACH, Example  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  $ SET PROCESS/NAME="TOP_LEVEL"
  $ SPAWN RUN SYS$SYSTEM:LATCP
  LATCP> SHOW NODE/ALL
     .
     .
     .
  LATCP> ATTACH "TOP_LEVEL"
  $

      In this example, the user enters the DCL SPAWN command to
      create a LATCP subprocess and uses LATCP to display the status
      of all nodes known to the local node. After using LATCP, the
      user enters the ATTACH command to return to the DCL command
      level.