1.$ LIBRARY/EXTRACT=(ALLOCATE,APPEND)/OUT=MYHELP SYS$HELP:HELPLIB.HLB

      This LIBRARY command specifies that the modules ALLOCATE and
      APPEND be extracted from the help library HELPLIB.HLB and
      output to the file MYHELP.HLP.

    2.$ LIBRARY/CROSS_REFERENCE=ALL/OUTPUT=SYS$OUTPUT LIBRAR

      This LIBRARY command requests a cross-reference listing of
      the object library LIBRAR.OLB. The cross-reference listing
      is displayed at the terminal. The listing includes cross-
      references by symbol, by value, and by module.