1.MAIL> DIRECTORY/FOLDERS
      Listing of folders in DISK$APEX:[HARRINGTON]MAIL.MAI;1
      Press Ctrl/C to cancel listing

      MAIL            NEWMAIL
      WASTEBASKET     CLASSES

      MAIL> SET FOLDER WASTEBASKET
      %MAIL-I-SELECTED, 3 messages selected
      MAIL> DIRECTORY

                                            WASTEBASKET
      #   From    Date             Subject

      1   MORRIS  19-DEC-1994        Venus Fly Traps
      2   MORRIS  21-DEC-1994        The Aloe
      3   BURT    22-DEC-1994        Scales

      This example shows how to use the SET FOLDER command to move
      from the MAIL folder to the WASTEBASKET folder.

    2.MAIL> SET FOLDER/BEFORE=12-DEC-1994
      %MAIL-I-SELECTED, 2 messages selected
      MAIL> DIRECTORY

                                            MAIL
      #   From    Date             Subject

      1   MARTY   10-DEC-1994        Food
      2   BART    11-DEC-1994        Soup

      This example shows how to display all the mail messages
      received before December 12, 1994.

    3.MAIL> SET FOLDER/NEW

      This example shows how to select all the new (unread) mail
      messages. Because NEWMAIL is the implied folder name, you do
      not need to specify a folder name.