EVE$HELP.HLB  —  VMS Differences
  VMS Differences

  Most EVE commands and keys work the same on VMS and ULTRIX. Here is a list
  of important differences:

     Features         Effects or differences on VMS
     ----------------------------------------------------------------------
     File names       On VMS, file names are not case-sensitive---you can
                      use uppercase, lowercase, or mixed case. For example,
                      MEMO.TXT and memo.txt specify the same file. On
                      ULTRIX, file names are case-sensitive.

     File versions    If you edit an existing file, then exiting or writing
                      out the buffer creates a new version of the file
                      without deleting or renaming previous versions. This
                      also applies to creating or updating a section file or
                      command file with SAVE ATTRIBUTES. On ULTRIX systems,
                      EVE copies the existing file to a backup file before
                      overwriting the existing file. EVE appends a version
                      number to the default name of the backup file that
                      increments with each new backup file. The commands are
                      not available on VMS that let the user enable or
                      disable the feature, or customize the way EVE creates
                      the backup file spec.

     Buffer names     On VMS, buffer names are not case-sensitive---you can
                      use uppercase, lowercase, or mixed case. For example,
                      MAIN and main specify the same buffer. On ULTRIX,
                      buffer names are case-sensitive; EVE system buffers
                      are named in all uppercase (for example, MESSAGES,
                      INSERT HERE, $RESTORE$, and so on).

     Journaling       On VMS, buffer-change journal files are created in the
                      directory defined by the TPU$JOURNAL logical name
                      (default is SYS$SCRATCH which is usually your top-
                      level, login directory). Default file type is
                      .TPU$JOURNAL. It is possible to have two or more
                      buffer-change journal files of the same name, such as
                      two MAIN.TPU$JOURNAL files from different editing
                      sessions. For more information, see help on Journal
                      Files.

     Wildcards        Default wildcards match the system you are using.
                      Thus, on VMS, the default is SET WILDCARD VMS; on
                      ULTRIX, it is SET WILDCARD ULTRIX. The setting applies
                      only to WILDCARD FIND and SHOW WILDCARDS---it does not
                      affect wildcards in file names, which are determined
                      by the operating system.

     DCL or SHELL     The DCL and SHELL commands are synonyms appropriate to
                      the operating system you are using. Thus, on VMS
                      systems, the SHELL command lets you execute a command
                      like DIRECTORY or PRINT. Similarly, on ULTRIX, the DCL
                      command lets you execute a command for the command
                      shell you are using. For example, the following
                      commands are equivalent---listing in a single-column
                      the files in your current, default directory:

                      On VMS                      On ULTRIX
                      --------------------        -----------
                      DCL DIRECTORY /COL=1        SHELL ls -1

                      (For more information, see help on the DCL command.)

     CTRL/Z exit      On VMS systems, EVE defines CTRL/Z and F10 as EXIT,
                      but does not define CTRL/D. On ULTRIX systems, EVE
                      defines CTRL/D as EXIT. Other EVE keys are defined the
                      same on both systems.

     File types       On VMS, the EVE and TPU default file types are as
                      follows:

                         .EVE ............. Initialization file
                         .TJL ............. Keystroke journal file
                         .TPU ............. Command file or debug file
                         .TPU$JOURNAL ..... Buffer-change journal file
                         .TPU$SECTION ..... Section file
                         .TPU$WORK ........ Work file

     Qualifiers       In invoking EVE, command-line qualifiers are not
                      positional (they can be placed before or after the
                      input file). Also, some qualifiers use an equal sign
                      (=) to distinguish a file associated with an option
                      and the input file (if any). For example, the
                      following command invokes EVE using an initialization
                      file named MYINIT.EVE to create or edit a file named
                      MEMO.TXT:

                         $ EDIT/TPU /INITIALIZATION=myinit memo.txt

     Startup files    On VMS, the EVE and TPU default startup file names are
                      as follows:

                         EVE$INIT.EVE .............. Initialization file
                         TPU$COMMAND.TPU ........... Command file
                         TPU$DEBUG.TPU ............. Debug file (with /DEBUG)
                         EVE$SECTION.TPU$SECTION ... Section file

     Logical names    On VMS, you can define the following EVE and TPU
                      logical names:

                         EVE$INIT ...... Initialization file
                         EVE$KEYPAD .... Keypad (EDT, EVE, NUMERIC, VT100, WPS)
                         TPU$COMMAND ... Command file
                         TPU$DEBUG ..... Debug file (with /DEBUG)
                         TPU$JOURNAL ... Buffer-change journaling directory
                         TPU$SECTION ... Section file

                      For example, if there is an initialization file you
                      want to use for all or most editing sessions, you can
                      define EVE$INIT to specify that file so when you
                      invoke EVE, that file is executed without having to
                      use the /INITIALIZATION qualifier. Typically, you put
                      the definition in your LOGIN.COM file.

                         $ DEFINE EVE$INIT [user.tools]myinit.eve
                         $ EDIT/TPU

                      On VMS you can define the EVE$KEYPAD logical name to
                      select an EVE keypad. Valid names are EDT, EVE,
                      NUMERIC, VT100, and WPS. If you do not define the
                      logical name, the keypad defaults to EVE which gives
                      the VT100 keypad on VT100 terminals or the NUMERIC
                      keypad on VT200 and later terminals.

                      On VMS, to invoke EVE with the Motif DECwindows
                      interface, use one of the following command:

                         $ EDIT/TPU/DISPLAY=DECWINDOWS

                         $ EDIT/TPU/DISPLAY=MOTIF

     MAIL editing     On VMS, you can use EVE as the editor in MAIL, VAX
                      BASIC, and Datatrieve. For more information, see help
                      on Mail Editing.

     SPELL            The SPELL command on VMS lets you modify your text by
                      spawning a subprocess in which you interact with the
                      VMS DECspell utility. When you exit DECspell, your
                      text is modified with the spelling corrections. SPELL
                      on ULTRIX does not modify your text, but simply
                      produces a list of any misspelled words in a second
                      window.

  If you are accustomed to pressing CTRL/L to refresh (redraw) the screen,
  you can redefine CTRL/L as REFRESH. By default, EVE defines CTRL/W as
  REFRESH and defines CTRL/L as INSERT PAGE BREAK.

  If you are accustomed to the vi editor, you may want to define the ESCAPE
  key or CTRL/[ (left bracket) as DO to emulate vi. However, on VMS systems,
  EVE does not let you define ESCAPE or CTRL/[.

  By default, EVE defined CTRL/Z as EXIT (ending the editing session). You
  may want to redefine CTRL/Z as SPAWN or as SHELL. On ULTRIX systems, EVE
  also defines CTRL/D as exit.

  For more information about EVE and TPU, see the EVE Reference Manual and
  VSI Text Processing Utility Manual.

     +----------------------------------------------------------------+
     | You can create a section file on VMS and use it on ULTRIX (or  |
     | conversely).  However some procedures and key definitions may  |
     | not work or may not work properly if they use system-specific  |
     | features or differences, such as file names and directories.   |
     +----------------------------------------------------------------+

  Related topics:

     Defaults     Journal Files     ULTRIX Differences
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