Adding a Bookshelf to the Default Display (Tru64 UNIX)
  You can add a local bookshelf to the default display as follows:

  1. Name your bookshelf file library.decw_bookshelf , which
        is the default name.
  2. Define the DECW_BOOK environment variable to in-
        clude the directory that contains the local bookshelf. For
        example, on a system that already has DECW_BOOK
        defined, to add /usr/mydir to the default display, define
        DECW_BOOK as follows:
        % setenv DECW_BOOK "`echo $DECW_BOOK` /usr/mydir"

        This definition lets you access all the books you usually
        read in addition to the books you add to the new bookshelf
        file.

        For more information about defining DECW_BOOK.
        see the section Modifying the Library Window Display
        (Tru64 UNIX).
  3. Start Bookreader from the command line:
        % dxbook

  Bookreader opens the first bookshelf it encounters. Therefore,
  you can display the books and bookshelves within your book-
  shelf file at startup time by placing your directory at the
  beginning of the DECW_BOOK search list. For example:
  % setenv DECW_BOOK "/usr/mydir `echo $DECW_BOOK`"