Library /sys$common/syshlp/helplib.hlb  —  EDIT
   The EDIT commands perform the following functions:

   o  Invoke the Access Control List Editor to create or modify an
      access control list for an object (see /ACL).

   o  Invoke the EDT screen-oriented editor (see /EDT).

   o  Invoke the FDL editor to create and modify File Definition
      Language files (see /FDL).

   o  Invoke the SUMSLP batch-oriented editor to update a single input
      file with multiple files of edit commands (see /SUM).

   o  Invoke the TECO editor (see /TECO).

   o  Invoke the TPU editor (see /TPU).

1    /ACL

    The access control list editor (ACL editor) creates or modifies
    an access control list (ACL) for a specified object.

    Format

      EDIT/ACL  object-spec

1.1  –  Parameter

 object-spec

    Specifies the object whose access control list is to be created
    or edited. If an access control list does not exist, it is
    created.

    You can specify an object from any of the following object
    classes:

       Capability
       Common event flag cluster
       Device
       File
       Group global section
       Logical name table
       Queue
       Resource domain
       Security class
       System global section
       Volume

    The default object class is a file. A file must be a disk file
    on a Files-11 On-Disk Structure Level 2 formatted volume. For any
    object other than a file, you must specify the object class with
    the /CLASS qualifier.

    Note that the ACL editor does not provide a default file type
    for files. To prevent the ACL editor from using a null file type,
    specify the file type on the command line. If the object is a
    directory, specify the .DIR file type.

    Do not include wildcard characters in the object specification.

1.1.1  –  Qualifiers

    Qualifier      Description

    /CLASS         Specifies the class of object whose ACL is being
                   edited
    /JOURNAL       Controls whether a journal file is created for the
                   editing session
    /MODE          Specifies the use of prompting during the editing
                   session
    /OBJECT_TYPE   Superseded by the /CLASS qualifier
    /RECOVER       Restores an ACL from a journal file at the
                   beginning of an editing session

1.2    /CLASS

    Specifies the class of the object whose ACL is being edited.
    Unless the object is a file, you must specify the object class.

    Format

      /CLASS  =object-class

1.2.1  –  Description

    To edit the ACL for an object other than a file, specify the
    object class with the /CLASS qualifier. Specify one of the
    following classes:

    CAPABILITY           A system capability, such as the ability to
                         process vector instructions. Currently, the
                         only defined object name for the CAPABILITY
                         class is VECTOR, which governs the ability
                         of a subject to access a vector processor
                         on the system. Note that you must supply
                         the capability name as the object name
                         parameter.
    COMMON_EVENT_        A common event flag cluster.
    CLUSTER
    DEVICE               A device, such as a disk or tape drive.
    FILE                 A file or a directory file. This is the
                         default.
    GROUP_GLOBAL_        A group global section.
    SECTION
    LOGICAL_NAME_TABLE   A logical name table.
    QUEUE                A batch queue or a device (printer, server,
                         or terminal) queue.
    RESOURCE_DOMAIN      A resource domain.
    SECURITY_CLASS       A security class.
    SYSTEM_GLOBAL_       A system global section.
    SECTION
    VOLUME               A disk or tape volume.

1.2.2  –  Examples

    1.$ EDIT/ACL/CLASS=DEVICE WORK1

      The command in this example specifies that the object WORK1 is
      a device.

    2.$ EDIT/ACL/CLASS=QUEUE FAST_BATCH

      The command in this example creates an ACL for the queue FAST_
      BATCH. Note that if you create an ACL for a generic queue, you
      must create identical ACLs for all execution queues to which
      jobs can be directed.

1.3    /JOURNAL

    Controls whether a journal file is created for the editing
    session.

    Format

      /JOURNAL  [=file-spec]

      /NOJOURNAL

1.3.1  –  Description

    By default, the ACL editor keeps a journal file containing a
    copy of modifications made during an editing session. The journal
    file is given the name of the object and a .TJL file type. If
    you specify a different name for the file, do not include any
    wildcard characters.

    To prevent the ACL editor from creating a journal file, specify
    /NOJOURNAL.

    If your editing session ends abnormally, you can recover the
    changes made during the aborted session by invoking the ACL
    editor with the /RECOVER qualifier.

1.3.2  –  Example

  $ EDIT/ACL/JOURNAL=COMMONACL.SAV MECH1117.DAT

      With this command, you create a journal file named
      COMMONACL.SAV. The file contains a copy of the ACL and
      the editing commands used to create the ACL for the file
      MECH1117.DAT.

      If the editing session is interrupted, you can recover your
      edits by specifying the name COMMONACL.SAV with the /RECOVER
      qualifier.

  $ EDIT/ACL/CLASS=RESOURCE/JOURNAL=ZERO_RESOURCE.TJL [0]

      If you edit an ACL for the resource domain [0], the ACL editor
      attempts to create the file [0].TJL on the default device
      and fails. To create an ACL for the resource [0], you must
      specify a different name for the journal file (as shown in this
      example) or suppress the creation of a journal file with the
      /NOJOURNAL qualifier.

1.4    /MODE

    Specifies the use of prompting during the editing session.

    Format

      /MODE  =option

1.4.1  –  Description

    By default, the ACL editor prompts you for each ACE and provides
    values for some of the fields within an ACE (/MODE=PROMPT). To
    disable prompting, specify /MODE=NOPROMPT on the command line.

1.4.2  –  Example

  $ EDIT/ACL/MODE=NOPROMPT WEATHERTBL.DAT

      With this command, you initiate an ACL editing session to
      create an ACL for the file WEATHERTBL.DAT. The /MODE=NOPROMPT
      qualifier specifies that no assistance is required in entering
      the ACL entries.

1.5    /OBJECT_TYPE

    The /OBJECT_TYPE qualifier is superseded by the /CLASS qualifier.

1.6    /RECOVER

    Restores an ACL from a journal file at the beginning of an
    editing session.

    Format

      /RECOVER  [=file-spec]

      /NORECOVER

1.6.1  –  Description

    The /RECOVER qualifier specifies that the ACL editor must restore
    the ACL from a journal file. The ACL editor restores the ACL
    to the state it was in when the last ACL editing session ended
    abnormally.

    By default the journal file is given the name of the object and
    a .TJL file type. If you specify a more meaningful name for the
    journal file when you invoke the ACL editor (by using /JOURNAL),
    specify that file name with the /RECOVER qualifier.

1.6.2  –  Example

  $ EDIT/ACL/JOURNAL=SAVEACL MYFILE.DAT
     .
     .
     .
  User creates ACL until system crashes
     .
     .
     .
  $ EDIT/ACL/JOURNAL=SAVEACL/RECOVER=SAVEACL MYFILE.DAT

     .
     .
     .
  ACL is restored and user proceeds with editing until done
     .
     .
     .
    ^Z
  $

      The first command in this example starts the ACL editing
      session and specifies that the ACL editor must save the journal
      file SAVEACL.TJL if the session ends abnormally. The session
      proceeds until it is aborted by a system crash.

      The next command restores the lost session with the journal
      file SAVEACL.TJL. To end the session, press Ctrl/Z. The ACL
      editor saves the edits and deletes the journal file.

2    /EDT

      Invokes the Digital Standard Editor (EDT) interactive text editor.

      Format

        EDIT/EDT  [file-name]

2.1  –  Parameter

 file-name

    Specifies the file to be created or edited using EDT. If the file
    does not exist, it is created by EDT.

    EDT does not provide a default file type when creating files; if
    you do not include a file type, it is null. The file must be a
    disk file on a Files-11 formatted volume.

    No wildcard characters are allowed in the file specification.

2.2  –  Qualifiers

2.2.1    /COMMAND

       /COMMAND[=file-name]
       /NOCOMMAND

    Determines whether or not EDT uses a startup command file. The
    /COMMAND file qualifier should be followed by an equal sign (=)
    and the specification of the command file. The default file type
    for command files is EDT. No wildcard characters are allowed in
    the file specification.

    The following command line invokes EDT to edit a file named
    MEMO.DAT and specifies that EDT use a startup command file named
    XEDTINI.EDT:

    $ EDIT/COMMAND=XEDTINI.EDT MEMO.DAT

    If you do not include the /COMMAND=command file qualifier,
    EDT looks for the EDTSYS logical name assignment. If EDTSYS
    is not defined, EDT processes the systemwide startup command
    file SYS$LIBRARY:EDTSYS.EDT. If this file does not exist, EDT
    looks for the EDTINI logical name assignment. If EDTINI is not
    defined, EDT looks for the file named EDTINI.EDT in your default
    directory. If none of these files exists, EDT begins your editing
    session in the default state.

    To prevent EDT from processing either the systemwide startup
    command file or the EDTINI.EDT file in your default directory,
    use the /NOCOMMAND qualifier as follows:

    $ EDIT/NOCOMMAND MEMO.DAT

2.2.2    /CREATE

       /CREATE (default)
       /NOCREATE

    Controls whether EDT creates a new file when the specified input
    file is not found.

    Normally, EDT creates a new file to match the input file
    specification if it cannot find the requested file name in the
    specified directory. When you use the /NOCREATE qualifier in the
    EDT command line and type a specification for a file that does
    not exist, EDT displays an error message and returns to the DCL
    command level as follows:

    $ EDIT/NOCREATE NEWFILE.DAT
    Input file does not exist
    $

2.2.3    /JOURNAL

       /JOURNAL[=journal-file]
       /NOJOURNAL

    Determines whether EDT keeps a journal during your editing
    session. A journal contains a record of the keystrokes you enter
    during an editing session. The default file name for the journal
    is the same as the input file name. The default file type is
    JOU. The /JOURNAL qualifier enables you to use a different file
    specification for the journal.

    The following command line invokes EDT to edit a file named
    MEMO.DAT and specifies the name SAVE.JOU for the journal:

    $ EDIT/JOURNAL=SAVE MEMO.DAT

    If you are editing a file from another directory and want the
    journal to be located in that directory, you must use the
    /JOURNAL qualifier with a file specification that includes the
    directory name. Otherwise, EDT creates the journal in the default
    directory.

    The directory that is to contain the journal should not be write-
    protected.

    To prevent EDT from keeping a record of your editing session, use
    the /NOJOURNAL qualifier in the EDT command line as follows:

    $ EDIT/NOJOURNAL MEMO.DAT

    Once you have created a journal, enter the EDT/RECOVER command to
    execute the commands in the journal. No wildcard characters are
    allowed in the file specification.

2.2.4    /OUTPUT

       /OUTPUT=output-file
       /NOOUTPUT

    Determines whether EDT creates an output file at the end of
    your editing session. The default file specification for both
    the input file and the output file is the same. Use the /OUTPUT
    qualifier to give the output file a different file specification
    from the input file.

    The following command line invokes EDT to edit a file named
    MEMO.DAT and gives the resulting output file the name OUTMEM.DAT:

    $ EDIT/OUTPUT=OUTMEM.DAT MEMO.DAT

    You can include directory information as part of your output file
    specification to send output to another directory as follows:

    $ EDIT/OUTPUT=[BARRETT.MAIL]MEMO.DAT MEMO.DAT

    The /NOOUTPUT qualifier suppresses the creation of an output
    file, but not the creation of a journal. If you decide that you
    do not want an output file, you can use the /NOOUTPUT qualifier
    as follows:

    $ EDIT/NOOUTPUT MEMO.DAT

    A system interruption does not prevent you from re-creating your
    editing session because a journal is still being maintained. To
    save your editing session, even when you specify /NOOUTPUT, use
    the line mode command WRITE to put the text in an external file
    before you end the session.

    No wildcard characters are allowed in the file specification.

2.2.5    /READ_ONLY

       /READ_ONLY
       /NOREAD_ONLY (default)

    Determines whether EDT keeps a journal and creates an output
    file. With the /NOREAD_ONLY qualifier, EDT maintains the journal
    and creates an output file when it processes the line mode
    command EXIT. Using the /READ_ONLY qualifier has the same effect
    as specifying both the /NOJOURNAL and /NOOUTPUT qualifiers.

    The following command line invokes EDT to edit a file named
    CALENDAR.DAT, but does not create a journal or an output file:

    $ EDIT/READ_ONLY CALENDAR.DAT

    Use the /READ_ONLY qualifier when you are searching a file and do
    not intend to make any changes to it. To modify the file, use the
    line mode command WRITE to save your changes. Remember, however,
    that you have no journal.

2.2.6    /RECOVER

       /RECOVER
       /NORECOVER (default)

    Determines whether EDT reads a journal at the start of the
    editing session.

    When you use the /RECOVER qualifier, EDT reads the appropriate
    journal and processes whatever commands it contains. The
    appropriate syntax is as follows:

    $ EDIT/RECOVER MEMO.DAT

    If the journal file type is not JOU or the file name is not the
    same as the input file name, you must include both the /JOURNAL
    qualifier and the /RECOVER qualifier as follows:

    $ EDIT/RECOVER/JOURNAL=SAVE.XXX MEMO.DAT

    Because the /NORECOVER qualifier is the default for EDT, you do
    not need to specify it in a command line.

2.3  –  Examples

    1.$ EDIT/OUTPUT=NEWFILE.TXT OLDFILE.TXT
          1       This is the first line of the file OLDFILE.TXT.
      *

    This EDIT command invokes EDT to edit the file OLDFILE.TXT.
    EDT looks for the EDTSYS logical name assignment. If EDTSYS
    is not defined, EDT processes the systemwide startup command
    file SYS$LIBRARY:EDTSYS.EDT. If this file does not exist, EDT
    looks for the EDTINI logical name assignment. If EDTINI is not
    defined, EDT looks for the file named EDTINI.EDT in your default
    directory. If none of these files exists, EDT begins your editing
    session in the default state. When the session ends, the edited
    file has the name NEWFILE.TXT.

    2.$ EDIT/RECOVER OLDFILE.TXT

    This EDIT command invokes EDT to recover from an abnormal
    exit during a previous editing session. EDT opens the file
    OLDFILE.TXT, and then processes the journal OLDFILE.JOU. Once
    the journal has been processed, the user can resume interactive
    editing.

3    /FDL

    Invokes the Edit/FDL utility (EDIT/FDL) to create and modify File
    Definition Language (FDL) files. The /FDL qualifier is required.
    For a complete description of the Edit/FDL utility, including
    more information about the EDIT/FDL command and its qualifiers,
    see the OpenVMS Record Management Utilities Reference Manual.

    Format

      EDIT/FDL  file-name

3.1  –  Parameter

 fdl-file-name

    Use this parameter to specify the FDL file to be created,
    modified, or optimized during this session. If you specify an
    existing FDL file for modification or for optimization, the
    output file is the next higher version of the file being modified
    or optimized. In all cases, you have the option of using the
    /OUTPUT qualifier to specify the output FDL file. The default
    file type is .FDL.

3.2  –  Qualifiers

3.2.1    /ANALYSIS

       /ANALYSIS=fdl-file-name

    This qualifier specifies an FDL file obtained from a file
    analysis.

    Example

  $ EDIT/FDL/ANALYSIS=Q1_SALES Q2_SALES

    This command begins an interactive session in which the analysis
    information in the file Q1_SALES.FDL is used, together with the
    input FDL file Q2_SALES.FDL, to obtain an optimized output file,
    which the system designates as the next higher version of Q2_
    SALES.FDL.

3.2.2    /CREATE

    This qualifier allows you to create an output file without an
    existing input file.

    Using the /CREATE qualifier, you can create an output file
    directly without the Edit/FDL utility notifying you that the
    file is to be created.

    Example

  $ EDIT/FDL/CREATE SALES_DATA

    This command begins a session in which SALES_DATA.FDL is created.
    The Edit/FDL utility does not issue the informational message
    stating that the new file SALES_DATA.FDL will be created.

3.2.3    /DISPLAY

       /DISPLAY=graph-option

    This qualifier specifies the type of graph you want displayed.

    LINE     Plots bucket size against index depth.

    FILL     Plots bucket size by the percentage of load fill by
             index depth.

    KEY      Plots bucket size by key length by index depth.

    RECORD   Plots bucket size by record size by index depth.

    INIT     Plots bucket size by initial load record count by index
             depth.

    ADD      Plots bucket size by additional record count by index
             depth.

    The default is LINE.

    Example

  $ EDIT/FDL/DISPLAY=KEY TEMP_DATA

    This command begins an interactive session in which the default
    value for the type of graph to be displayed has been changed from
    LINE to KEY. TEMP_DATA is the name of the FDL file to be created.

3.2.4    /EMPHASIS

       /EMPHASIS=tuning-bias

    This qualifier provides you with a choice between smaller
    buffers and flatter files. You can use /EMPHASIS with the
    /NOINTERACTIVE qualifier if you want EDIT/FDL to be executed
    without an interactive terminal dialogue.

    FLATTER_FILES    Generally increases bucket size. The bucket
                     size, in turn, controls the number of levels
                     in the index structure. If a larger bucket size
                     eliminates one level, then you should use this
                     option. At some point, however, the benefit of
                     having fewer levels will be offset by the cost
                     of scanning through the larger buckets.

    SMALLER_BUFFERS  Generally decreases the amount of memory you
                     have to use.

    Example

  $ EDIT/FDL/EMPHASIS=SMALLER_BUFFERS TEMP_DATA

    This command begins an interactive session in which the default
    value for the bucket size emphasis has been changed from FLATTER_
    FILES to SMALLER_BUFFERS. TEMP_DATA is the name of the FDL file
    to be created.

3.2.5    /GRANULARITY

       /GRANULARITY=n

    This qualifier specifies the number of key-associated areas in
    an indexed file. A file can contain from 1 to 255 key-associated
    areas and each area can contain one or more index levels from one
    or more keys.

    Each key definition contains the following area designations:

    o  DATA_AREA

    o  LEVEL1_INDEX_AREA

    o  INDEX_AREA

    During input processing, the optimization and redesign functions
    assign two areas per key, one for data and one for both indexes.
    During output processing, the area designators are adjusted
    according to the granularity specified. Checks are made to
    exclude areas that have no key indexes and to create new key
    indexed areas where none previously existed.

    To assign more than two areas per key (DOUBLE) or to assign
    nonstandard key and area associations, you must invoke an
    interactive session. With the granularity qualifier configured
    as GRANULARITY=DOUBLE, create new areas and set the corresponding
    area designators to reference the new areas on a per-key basis.

    Example

  $ EDIT/FDL/GRANULARITY=2 TEMP_DATA.FDL

    This command begins an interactive session in which the output
    granularity will be two (2). TEMP_DATA.FDL is the name of the FDL
    file being processed.

3.2.6    /NOINTERACTIVE

    This qualifier causes the Edit/FDL utility to execute the
    Optimize script without a terminal dialogue.

    The /NOINTERACTIVE qualifier allows you to optimize an existing
    FDL file with the Edit/FDL utility but without an interactive
    terminal dialogue. You must have previously entered the ANALYZE
    /RMS_FILE/FDL command, specifying your existing RMS data file
    as the target file. The Edit/FDL utility then uses the data
    from the analysis FDL file while the Optimize script proceeds
    noninteractively. If data is missing, the Edit/FDL utility uses
    the defaults. However, if critical data items are not found in
    the analysis file, the Edit/FDL utility exits without producing
    an output file.

    Example

  $ EDIT/FDL/ANALYSIS=TEMP_DATA/NOINTERACTIVE TEMP_DATA

    This command begins a noninteractive session in which the
    FDL file TEMP_DATA;2 is created from the analysis FDL file
    TEMP.DATA;1.

3.2.7    /NUMBER_KEYS

       /NUMBER_KEYS=n

    This qualifier allows you to specify the number of keys in your
    indexed file.

    Example

  $ EDIT/FDL/NUMBER_KEYS=3 TEMP_DATA

    This command begins an interactive session in which the default
    value for the number of keys in an indexed file is changed from
    1 key to 3 keys. TEMP_DATA is the name of the FDL file to be
    created.

3.2.8    /OUTPUT

       /OUTPUT=file-spec

    This qualifier specifies the FDL file in which to place the
    definition from the current session.

    If you omit the /OUTPUT qualifier, the output FDL file will have
    the same name and file type as the input file, with a version
    number that is one higher than the highest existing version of
    the file.

    The default file type is .FDL.

    Example

  $ EDIT/FDL/OUTPUT=NEWINDEX INDEX

    Begins a session in which the contents of INDEX.FDL are read into
    the FDL editor and can then be modified. NEWINDEX.FDL is created;
    INDEX.FDL is not changed.

3.2.9    /PROMPTING

       /PROMPTING=prompt-option

    Specifies the level of prompting to be used during the terminal
    session.

    By default, the Edit/FDL utility chooses either BRIEF or FULL,
    depending on the terminal type and the line speed. High-speed
    CRT terminals are set to FULL; nonscope terminals and terminals
    operating at less than 2400 baud are set to BRIEF.

    Example

  $ EDIT/FDL/PROMPTING=BRIEF TEMP_DATA

    This command begins an interactive session in which the value of
    the prompting level for the the Edit/FDL utility menus is set to
    BRIEF.

3.2.10    /RESPONSES

       /RESPONSES=response-option

    This qualifier allows you to select how you want to respond to
    script questions.

    AUTOMATIC  Indicates that you want all script default responses
               to be used automatically. This option speeds the
               progress of the question and answer session. Once
               you have entered the design phase, you can modify most
               of the answers you took by default.

    MANUAL     Indicates that you want to provide all script
               responses.

    Example

  $ EDIT/FDL/RESPONSES=MANUAL TEMP_DATA

    This command begins an interactive session in which the type of
    script response is MANUAL.

3.2.11    /SCRIPT

       /SCRIPT=script-title

    This qualifier controls whether the Edit/FDL utility begins the
    session by asking a logically grouped sequence of questions to
    aid you in creating the FDL file.

    ADD_KEY      Allows you to model or add to the attributes of a
                 new index.

    DELETE_KEY   Allows you to remove attributes from the highest
                 index of your file.

    INDEXED      Begins a dialogue in which you are prompted for
                 information about the indexed data file to be
                 created from the FDL file. the Edit/FDL utility
                 supplies values for certain attributes.

    OPTIMIZE     Requires that you use the analysis information from
                 an FDL file that was created with the Analyze/RMS_
                 File utility (ANALYZE/RMS_FILE). The FDL file itself
                 is one of the inputs to the Edit/FDL utility (EDIT
                 /FDL). In other words, you can tune the parameters
                 of all your indexes using the file statistics
                 gathered from a file analysis.

    RELATIVE     Begins a dialogue in which you are prompted for
                 information about the relative data file to be
                 created from the FDL file. the Edit/FDL utility
                 supplies values for certain attributes.

    SEQUENTIAL   Begins a dialogue in which you are prompted for
                 information about the sequential data file to be
                 created from the FDL file. the Edit/FDL utility
                 supplies values for certain attributes.

    TOUCHUP      Begins a dialogue in which you are prompted for
                 information about the changes you want to make to an
                 existing index.

    Example

  $ EDIT/FDL/SCRIPT=INDEXED TEMP_DATA

    This command begins an interactive session in which both the
    main menu and the script menu are bypassed. Instead, the Indexed
    script is generated immediately.

4    /SUM

   Invokes the SUMSLP batch-oriented editor to update source files.
   You enter text changes and editing commands in update files.  SUMSLP
   merges the update files containing the changes with the source file
   that you specify, and gives you a record of the changes in the form
   of an audit trail.

   For more information, see the VMS SUMSLP Utility Manual.

   Format:

   EDIT/SUM  file-spec

4.1  –  Parameter

  file-spec

   Specifies the source file to be edited.

4.2  –  Qualifiers

4.2.1    /LISTING

   /LISTING[=file-spec]

   Determines whether a sequence-numbered listing file, showing the
   original and inserted lines and an audit trail, is produced during
   the editing process. If you do not include a file specification,
   the listing file takes the same name as the input file, with a file
   type of LIS. By default, no listing file is produced.

4.2.2    /OUTPUT

   /OUTPUT[=file-spec]

   Specifies the output file to be used in the editing session.  If you
   do not include a file specification, the output file has the same
   name and type as the input file, with a version number one higher
   than the highest existing version.

4.2.3    /HEADER

   /HEADER/OUTPUT=file-spec

   Determines whether the output file is created as a VFC format
   sequential file with the line insert number and audit trail
   information in the record header block (RHB) for the records.

4.2.4    /UPDATE

   /UPDATE[=(update-file-spec[,...])]

   Indicates the file or files containing the editing commands and
   changes to be applied to the input source file.   The default file
   type of these files is UPD.

4.3  –  Example

   EDIT/SUM FILE1.MAR/UPDATE=(UPD1A,UPD1B.ENH)

   The input source file FILE1.MAR is updated with the merged contents
   of SUMSLP update files UPD1A.UPD and UPD1B.ENH.

5    /TECO

    Invokes the TECO interactive text editor. The /TECO qualifier is
    required.

    Format

      EDIT/TECO  [file-name]

      EDIT/TECO/EXECUTE=command-file  [argument]

5.1  –  Parameter

 file-name
    Specifies the file to be created or edited using the TECO editor.
    If the file does not exist, it is created by TECO, unless you
    specify the /NOCREATE qualifier. No wildcard characters are
    allowed in the file specification.

    If you specify the /MEMORY qualifier (default) without a file
    specification, TECO edits the file identified by the logical name
    TEC$MEMORY. If TEC$MEMORY has no equivalence string, or if the
    /NOMEMORY qualifier is specified, TECO starts in command mode and
    does not edit an existing file.

    If you specify the /MEMORY qualifier and a file specification, the
    file specification is equated to the logical name TEC$MEMORY.

5.2  –  Qualifiers

5.2.1    /COMMAND

       /COMMAND[=file-name]
       /NOCOMMAND

    Controls whether a startup command file is used. The /COMMAND
    file qualifier may be followed by an equal sign (=)  and the
    specification of the command file. The default file type for
    command files is TEC.

    The following command line invokes TECO to edit a file named
    MEMO.DAT and specifies that TECO use a startup command file named
    XTECOINI.TEC:

      $ EDIT/TECO/COMMAND=XTECOINI.TEC MEMO.DAT

    If you do not include the /COMMAND qualifier, or if you enter
    /COMMAND without specifying a command file, TECO looks for the
    TEC$INIT logical name assignment. If TEC$INIT is not defined, no
    startup commands are executed.

    The logical name TEC$INIT can equate either to a string of TECO
    commands or to a dollar sign followed by a file specification.
    If TEC$INIT translates to a string of TECO commands, the string
    is executed; if it translates to a dollar sign ($)  followed by
    a file specification, the contents of the file are executed as a
    TECO command string. For further information, see the PDP-11 TECO
    Editor Reference Manual.

    To prevent TECO from using any startup command file, use the
    /NOCOMMAND qualifier as follows:

      $ EDIT/TECO/NOCOMMAND MEMO.DAT

    No wildcards are allowed in the file specification.

5.2.2    /CREATE

       /CREATE (default)
       /NOCREATE

    Creates a new file when the specified input file cannot be
    found. If the /MEMORY qualifier is specified and no input file
    is specified, the file created is the one specified by the logical
    name TEC$MEMORY. Normally, TECO creates a new file to match the
    input file specification if it cannot find the requested file name
    in the specified directory. When you use the /NOCREATE qualifier
    in the TECO command line and type a specification for a file that
    does not exist, TECO displays an error message and returns you to
    the DCL command level. The /CREATE and /NOCREATE qualifiers are
    incompatible with the /EXECUTE qualifier.

5.2.3    /EXECUTE

       /EXECUTE=command-file [argument]

    Invokes TECO and executes the TECO macro found in the command
    file. The argument, if specified, appears in the text buffer
    when macro execution starts. Blanks or special characters must
    be enclosed in quotation marks (" ").  For detailed information
    on the use of TECO macros, see the PDP-11 TECO Editor Reference
    Manual.

    The /EXECUTE qualifier is incompatible with the /CREATE and
    /MEMORY qualifiers.

5.2.4    /MEMORY

       /MEMORY (default)
       /NOMEMORY

    Specifies that the last file you edited with TECO, identified by
    the logical name TEC$MEMORY, will be the file edited if you omit
    the file specification to the EDIT/TECO command.

5.2.5    /OUTPUT

       /OUTPUT=output-file
       /NOOUTPUT (default)

    Controls how the output file is named at the end of your editing
    session. By default, the output file has the same name as
    the input file but is given the next higher available version
    number. Use the /OUTPUT qualifier to give the output file a file
    specification different from the input file.

    The following command line invokes TECO to edit a file named
    MEMO.DAT and gives the resulting output file the name OUTMEM.DAT:

      $ EDIT/TECO/OUTPUT=OUTMEM.DAT MEMO.DAT

    You can include directory information as part of your output file
    specification to send output to another directory as follows:

      $ EDIT/TECO/OUTPUT=[BARRET.MAIL]MEMO.DAT MEMO.DAT

    No wildcard characters are allowed in the file specification.

5.2.6    /READ_ONLY

       /READ_ONLY
       /NOREAD_ONLY (default)

    Controls whether an output file is created. By default, an output
    file is created; the /READ_ONLY qualifier suppresses the creation
    of the output file.

5.3  –  Examples

    1.  $ EDIT/TECO/OUTPUT=NEWFILE.TXT OLDFILE.TXT

      This EDIT command invokes the TECO editor to edit the
      file OLDFILE.TXT. TECO looks for the TEC$INIT logical name
      assignment. If TEC$INIT is not defined, TECO begins the editing
      session without using a command file. When the session ends,
      the edited file has the name NEWFILE.TXT.

    2.  $ EDIT/TECO/EXECUTE=FIND_DUPS "TEMP, ARGS, BLANK"

      In this example, the /EXECUTE qualifier causes the TECO macro
      contained in the file FIND_DUPS.TEC to be executed, with the
      argument string "TEMP, ARGS, BLANK" located in the text buffer.

6    /TPU

  Invokes the DEC Text Processing Utility (DECTPU).  By default, this
  runs an editor called EVE (for Extensible Versatile Editor).

  Format:

     EDIT/TPU[/qualifier...] [input-file,...]

  For example, the following command invokes DECTPU (running EVE) to
  create or edit a file named JABBER.TXT in your current, default
  directory:

     $ EDIT/TPU jabber.txt

  For information about DECTPU programming, see the DEC Text Processing
  Utility Reference Manual.  For information about EVE, see the
  Extensible Versatile Editor Reference Manual or use the online help
  in EVE.

6.1  –  EVE Editor

  The Extensible Versatile Editor (EVE) is a general-purpose text
  editor created with DECTPU---in effect, the default DECTPU
  application.  You can use EVE on DECwindows or character-cell
  terminals (VT400, VT300, VT200, or VT100 series).  EVE reads and
  writes standard ASCII text files.

  Using EVE, you can do the following:

  o  Perform basic text editing and formatting operations
  o  Create or edit one or more files in an editing session
  o  Use multiple buffers and windows, and resize the windows
  o  Set EDT or WPS keypad, define keys, and create learn sequences
  o  Select boxes or linear ranges for cut-and-paste or other edits
  o  Use either OpenVMS- or ULTRIX-style wildcards to search text
  o  Execute DCL commands, such as DIRECTORY, from within the editor
  o  Run DECspell to check selected text or an entire buffer
  o  Spawn subprocesses or attach to other processes
  o  Compile and execute DECTPU procedures to extend EVE
  o  Add or delete menu items for the DECwindows interface
  o  Save your customizations for future sessions
  o  Use initialization files at startup or during an editing session
  o  Recover your work in case of a system failure during a session
  o  Get online help on commands, keys, menu items, and other topics

  To invoke EVE, use the EDIT/TPU command.  By default, this runs the
  standard EVE section file---EVE$SECTION.TPU$SECTION (see help on
  /SECTION).  You may want to create a symbol for invoking EVE, by
  putting the following line in your LOGIN.COM file:

     $ eve :== EDIT/TPU    !  My symbol to invoke EVE

  If you specify an input file on the EDIT/TPU command line, EVE
  creates a buffer using the file name and file type for the buffer
  name, copies the file into that buffer, and displays it in the main
  window.  If the file does not exist---for example, if you are
  creating a new file---the buffer is empty.  If you do not specify an
  input file, EVE creates an empty buffer named MAIN.  See help on
  Parameters.

  By default, EVE tries to execute an initialization file named
  EVE$INIT.EVE in your current directory or in SYS$LOGIN (your top-
  level, login directory).  See help on /INITIALIZATION.

  Also, by default, EVE creates a buffer-change journal file for each
  buffer you create, so that if a system failure occurs during your
  editing session, you can recover your text.  See help on /JOURNAL and
  /RECOVER.

  To enter EVE commands, press DO or PF4, type a command, and press
  RETURN.  For a keypad diagram and help on defined keys, press HELP
  (on VT100-series terminals, press PF2).  To exit from EVE, press F10
  or CTRL/Z.

  For more information, see the Extensible Versatile Editor Reference
  Manual or use the online help in EVE, which provides informational
  topics on various features in addition to help on EVE commands and
  keys.  In particular, you may want to read the following
  informational topics:

     New Features
     New User
     EDT Conversion
     EDT Differences
     WPS Differences

  For information about using EVE on DECwindows, use the online help in
  EVE and read the topic called DECwindows Differences.

  DECTPU and EVE run on both OpenVMS and ULTRIX operating systems.  Thus,
  you can use the same editor on both systems, allowing for differences
  in the way files and directories are specified.

6.2  –  Examples

  1.  $ EDIT/TPU

      Invokes DECTPU.  By default, this runs EVE, creating an empty
      buffer named MAIN.  You can then simply start typing and editing,
      or you can specify the file you want to edit by using the GET
      FILE, OPEN, or OPEN SELECTED command.

  2.  $ EDIT/TPU /INTERFACE=DECWINDOWS

      Invokes DECTPU, running EVE, with the DECwindows Motif interface.
      For more information, see help on /DISPLAY or /INTERFACE.

  3.  $ EDIT/TPU jabber.txt

      Edits a file named JABBER.TXT in your current, default directory.
      If the file exists, EVE displays the text in the main window; if
      you are creating a new file, the main window and buffer empty.

  4.  $ EDIT/TPU *.txt

      EVE lets you use logical names and wildcards (such as *) to
      specify the input file.  If more than one file matches your
      request, EVE shows a list of the matching files to choose from---
      in this case, a list of files with the type .TXT.  If no file
      matches, EVE creates an empty buffer named MAIN.

  5.  $ EDIT/TPU jabber.txt,*.mail,*.lis,memo.txt

      Edits files named JABBER.TXT and MEMO.TXT, and displays a list of
      files matching *.MAIL.  If more than one file matches *.LIS, EVE
      issues a warning message that only one ambiguous file name is
      allowed on the EDIT/TPU command line.  If only a single file
      matches *.LIS, EVE opens that file.  If only a single file
      matches *.MAIL, EVE opens that file and displays the list of any
      files matching *.LIS.

      EVE displays the first file in the main window.  If JABBER.TXT
      exists, EVE displays the text in the main window; if you are
      creating a new file, the main window is empty.

  6.  $ EDIT/TPU memo.txt /RECOVER

      Recovers the text of MEMO.TXT by using a buffer-change journal
      file named MEMO_TXT.TPU$JOURNAL.  See help on /RECOVER.

  7.  $ DEFINE TPU$SECTION sys$login:mysection
      $ EDIT/TPU

      Defines the DECTPU default section file as MYSECTION.TPU$SECTION
      in your top-level, login directory and then invokes DECTPU using
      that section file instead of the standard EVE section file.  See
      help on /SECTION.

6.3  –  Logical Names

  You can define the following logical names for DECTPU and EVE startup
  files and other features instead of having to use command-line
  qualifiers:

  Logical names          Definitions and usage
  ---------------------------------------------------------------------
  EVE$INIT               EVE initialization file, typically to set
                         margins, tab stops, and other attributes, or
                         to define keys.  See help on /INITIALIZATION.

  EVE$KEYPAD             EVE keypad.  This logical lets you choose
                         between the various keypads.  Valid
                         equivalence names are EDT, EVE, NUMERIC,
                         VT100, and WPS.  If the logical name is not
                         defined, the keypad defaults to EVE which
                         gives the VT100 keypad on VT100 terminals or
                         the NUMERIC keypad on VT200 and later
                         terminals.  This logical name overrides any
                         keypad setting saved in a section file.  Users
                         can override the effect of this logical name
                         by setting the keypad in their initialization
                         file or command file.  This logical name has
                         no equivalent qualifier.

                         If you extend EVE with your own keypad, you
                         can also define the logical name to be the
                         name of your keypad.  For example, assume you
                         have created a keypad named SIMPLE, and have a
                         procedure named EVE_SET_KEYPAD_SIMPLE that
                         sets the keypad.  If you define the logical
                         name to be SIMPLE, EVE will invoke your keypad
                         during startup.

  TPU$CHARACTER_SET      Character set to use to display characters
                         having the 8th bit set.  This affects how
                         DECTPU converts text to lowercase or
                         uppercase, and how it removes diacritical
                         marks from text.  See help on /CHARACTER_SET.

  TPU$COMMAND            DECTPU command file to extend EVE, set up a
                         special text-processing environment for batch
                         editing, or create your own application.  See
                         help on /COMMAND.

  TPU$DEBUG              DECTPU debug file to be compiled and executed
                         when you use /DEBUG.  Defining TPU$DEBUG does
                         not automatically run the debug file when you
                         invoke DECTPU.

  TPU$DISPLAY_MANAGER    Screen display or interface.  See help on
                         /DISPLAY or /INTERFACE.

  TPU$JOURNAL            Directory for buffer-change journal files.
                         Does not apply to keystroke journal files.
                         Default is SYS$SCRATCH.  See help on /JOURNAL.

  TPU$SECTION            Section file---either a customized version of
                         EVE or an application you created.  Default is
                         EVE$SECTION.TPU$SECTION, the standard EVE
                         section file.  See help on /SECTION.

  TPU$WORK               Work file which DECTPU uses to swap memory for
                         editing very large files.  See help on /WORK.

  Defining TPU$COMMAND or EVE$INIT makes startup faster than having the
  editor search for the respective default file.  For example, if there
  is an EVE initialization file you want to use for all or most editing
  sessions, you should define EVE$INIT to specify that file, rather
  than have EVE search for the EVE$INIT.EVE file.  You can put the
  definitions in your LOGIN.COM file.

  To override a definition, use the relevant command-line qualifier.
  For example, if you defined TPU$COMMAND but want to use a different
  command file for a particular editing session, use /COMMAND= and
  specify the command file; or if you do not want a command file used
  for a particular editing session, use /NOCOMMAND.

6.4  –  Parameters

  [input-file,...]

  The names of one or more text files you want to edit or create.  The
  files must be disk files on a Files-11 formatted volume.  There is no
  default file type---if you do not specify a file type, the file type
  is null.  Processing the input file depends on the DECTPU application
  you are using.  EVE handles the input file as follows:

  o  EVE uses the input file name and file type for the buffer name.
     If the input file exists, EVE copies it into the buffer and
     displays the text in the main window.  A message tells you the
     number of lines in the file.  For example, the following command
     edits a file named JABBER.TXT:

        $ EDIT/TPU jabber.txt
        24 lines read from DISK$1:[USER]JABBER.TXT;4

     If the file does not exist---if you are creating a new file---the
     buffer is empty.

  o  If you do not specify an input file, EVE creates an empty buffer
     named MAIN.  You can then simply start typing and editing, or you
     can specify the file you want to edit or create by using the GET
     FILE, OPEN, or OPEN SELECTED command.

  o  EVE lets you specify more than one file name on the EDIT/TPU
     command line.  EVE reads each file, and applies the file related
     qualifiers to each file.

  o  EVE lets you use logical names and wildcards, to specify the file
     ---for example, *.TXT.  You can create and edit more than one file
     in an editing session.

  o  If more than one file matches your wildcard input file---for
     example, if there are two or more files matching *.TXT or other
     wildcard abbreviation---EVE displays a list of the matching files
     so you can choose the one you want.  For more information, use the
     online help in EVE and read the topic called Choices Buffer.

  o  If you specify more than one wildcard input file, EVE displays the
     list of matching files only for the first wildcard input file.
     For other wildcard input files having more than one matching file,
     EVE issues a warning message that only one ambiguous file name is
     allowed on the EDIT/TPU command line.

  o  If more than one file matches your wildcard file name, EVE delays
     applying the following qualifiers (or their defaults) until after
     you resolve the file name:

        /[NO]MODIFY
        /[NO]OUTPUT
        /[NO]READ_ONLY
        /START_POSITION
        /[NO]WRITE

     If you specify multiple input files on the EDIT/TPU command line,
     these qualifiers apply to each buffer.  They do not affect buffers
     you create during the editing session.

  o  If you use a search list to specify the input file or use
     wildcards for the device (disk) or directory (such as [...]), EVE
     gets the first matching file in the search list or directory tree.
     If none of the files in the search list exists, EVE creates an
     empty buffer using the first file name in the search list (unless
     you used /NOCREATE).

6.5  –  Programming

  The DEC Text Processing Utility (DECTPU) provides a structured
  progamming language with an interpreter, compiler, and other software
  components, for creating text editors and other applications.  DECTPU
  has a callable interface so you can call editing functions from a
  program written in BLISS, C, FORTRAN, or other language.

  EVE (Extensible Versatile Editor) is the default DECTPU application.
  You can use DECTPU to customize EVE or to create your own
  applications.  The EVE source files are available online as examples
  of DECTPU programming and as a kind of run-time library of DECTPU
  procedures.  For a list of the EVE source files, use the following
  DCL command:

     $ DIRECTORY SYS$EXAMPLES:EVE$*.TPU

6.6  –  Qualifiers

  Qualifier formats                 Defaults
  ---------------------------------------------------------------------
  /CHARACTER_SET[=character_set]    /CHARACTER_SET=DEC_MCS

  /[NO]COMMAND[=command-file]       /COMMAND=TPU$COMMAND.TPU

  /[NO]CREATE                       /CREATE

  /[NO]DEBUG[=debug-file]           /NODEBUG

  /[NO]DISPLAY[=interface]          /DISPLAY=CHARACTER_CELL

  /[NO]INITIALIZATION[=init-file]   /INITIALIZATION=EVE$INIT.EVE

  /INTERFACE[=interface]            /INTERFACE=CHARACTER_CELL

  /[NO]JOURNAL[=journal-file]       /JOURNAL

  /[NO]MODIFY                       /MODIFY

  /[NO]OUTPUT[=output-file]         /OUTPUT

  /[NO]READ_ONLY                    /NOREAD_ONLY

  /[NO]RECOVER                      /NORECOVER

  /[NO]SECTION[=section-file]       /SECTION=TPU$SECTION

  /START_POSITION=(row[,column])    /START_POSITION=(1,1)

  /[NO]WORK[=work-file]             /WORK=SYS$SCRATCH:TPU$WORK.TPU$WORK

  /[NO]WRITE                        /WRITE

  NOTE:  Some qualifiers and their defaults are EVE-specific.  Other
         DECTPU applications may handle some qualifiers differently.
         For more information, see the DEC Text Processing Utility
         Reference Manual.

6.7    /CHARACTER_SET

  /CHARACTER_SET[={DEC_MCS (default) | ISO_LATIN1 | GENERAL}]

  Determines the character set you want DECTPU to use to display 8-bit
  characters.  The choice of character set affects how DECTPU performs
  the following operations on characters:

  o  Converting to lowercase

  o  Converting to uppercase

  o  Inverting case

  o  Removing diacritical marks

  o  Converting to uppercase and removing diacritical marks

  The choice of character set also affects how your text appears when
  printed.  For the text displayed in DECTPU to look the same when
  printed, you must choose the same character set for both DECTPU and
  the printer.

  There are two ways to specify the character set you want to use:

  o  Define the TPU$CHARACTER_SET logical name to specify the character
     set.

     This lets you use that character set for all editing sessions---
     including when you invoke DECTPU within MAIL or other utilities.
     You can put the definition in your LOGIN.COM file.  For example,
     the following commands define TPU$CHARACTER_SET as ISO_LATIN1, and
     then invoke DECTPU using that character set:

        $ DEFINE TPU$CHARACTER_SET iso_latin1
        $ EDIT/TPU

  o  Use /CHARACTER_SET= and specify the character set on the command
     line.

     This overrides any definition of the TPU$CHARACTER_SET logical
     name.  By default, DECTPU uses the DEC_MCS character set.  For
     example, the following command invokes DECTPU, using the GENERAL
     character set:

        $ EDIT/TPU /CHARACTER_SET=general

  If the character set you specify either with /CHARACTER_SET or by
  defining TPU$CHARACTER_SET is invalid, the editing session is
  aborted, returning you to the DCL level.

6.8    /COMMAND

  /COMMAND[=command-file] (default)
  /NOCOMMAND

  Determines the DECTPU command file you want to use, if any.  A
  command file contains DECTPU procedures and executable statements to
  extend the editor.  For example, you can use a command file to create
  additional EVE commands, define keys, or set attributes.  You can
  also use a command file to set up a special text-processing
  environment for creating your own DECTPU application or for batch
  editing.

  You cannot use wildcards to specify the command file.  You can
  specify only one command file at a time.  Default file type is .TPU.

  There are three ways to specify the command file you want to use:

  o  Name the command file TPU$COMMAND.TPU.

     By default, DECTPU looks for this command file in your current
     directory.  Thus, you can have a different command file for each
     directory or subdirectory without having to specify the command
     file each time.

  o  Define the TPU$COMMAND logical name to specify the command file.

     This lets you use that command file for all editing sessions---
     including when you invoke DECTPU within MAIL or other utilities---
     and lets you keep that file in any convenient directory or
     subdirectory.  The logical name overrides the search for the
     TPU$COMMAND.TPU file.  You can put the definition in your
     LOGIN.COM file.  For example, the following commands define
     TPU$COMMAND as MYPROCS.TPU in your top-level, login directory and
     then invoke DECTPU using that command file:

        $ DEFINE TPU$COMMAND sys$login:myprocs
        $ EDIT/TPU

  o  Use /COMMAND= and specify the command file on the command line.

     This overrides any definition of the TPU$COMMAND logical name and
     overrides the default search for the TPU$COMMAND.TPU file.  For
     example, the following command invokes DECTPU, using a command
     file named MYPROCS.TPU in your current, default directory:

        $ EDIT/TPU /COMMAND=myprocs

  If the command file you specify either with /COMMAND or by defining
  TPU$COMMAND is not found, the editing session is aborted, returning
  you to the DCL level.

  If you do not want a command file executed, use /NOCOMMAND---
  typically if you defined the TPU$COMMAND logical name or created a
  TPU$COMMAND.TPU file but do not want it used for a particular editing
  session.  Also, /NOCOMMAND makes startup faster because DECTPU then
  does not search for a command file and does not have to compile and
  execute code at startup.

  At startup, DECTPU compiles and executes the command file, if one is
  being used, after loading a section file (if any) and before EVE
  executes an initialization file (if any).  Thus, you can use a
  command file in conjunction with a section file and an initialization
  file.  Procedures, settings, and key definitions in a command file
  override those in the section file.  For more information about
  command files, see the DEC Text Processing Utility Reference Manual
  or use the online help in EVE and read the topic called Command
  Files.

  In EVE, you can create or update a command file by using the SAVE
  ATTRIBUTES command to save menu definitions for the DECwindows
  interface and most global settings ("attributes").  For more
  information, see the Extensible Versatile Editor Reference Manual or
  use the online help in EVE and read the topic called Attributes.

6.9    /CREATE

  /CREATE    (default)
  /NOCREATE

  Determines whether a buffer is created when the input file is not
  found.  Processing this qualifier depends on the DECTPU application
  you are using.

  For EVE, the default is /CREATE.  If any input file specified on the
  command line does not exist, EVE creates a buffer using the file name
  and file type as the buffer name; or if you do not specify an input
  file, EVE creates an empty buffer named MAIN.

  Use /NOCREATE to edit only existing files.  Thus, if none of the
  input files are found, the editing session is aborted returning you
  to the DCL level, as in the following example:

     $ EDIT/TPU old.dat,new.dat /NOCREATE
     Input file or files do not exist: OLD.DAT,NEW.DAT
     $

6.10    /DEBUG

  /DEBUG[=debug-file]
  /NODEBUG            (default)

  Determines whether you run a DECTPU debug file to test procedures for
  an application you are creating.  DECTPU compiles, and executes the
  debug file---before executing TPU$INIT_PROCEDURE.

  Using /DEBUG without specifying a debug file runs the default DECTPU
  debugger---TPU$DEBUG.TPU, which provides commands to manipulate
  variables and to control program execution.  To start editing the
  code in the file you are debugging, use the GO command.  For more
  information about the debugger, read the comments in the
  TPU$DEBUG.TPU source file in SYSSHARE, or see the DEC Text Processing
  Utility Reference Manual or use the online help in EVE as follows:

     Command:  HELP TPU Debugger

  There are two ways to specify a debug file of your own:

  o  Define the TPU$DEBUG logical name to specify the debug file, and
     then use EDIT/TPU/DEBUG.

     Defining the logical name does NOT by itself run the debugger when
     you invoke DECTPU.  It only specifies which debug file is run when
     you use /DEBUG.  You can put the definition in your LOGIN.COM
     file.

  o  Use /DEBUG= and specify the debug file on the command line.

     For example, the following command edits a file named MYPROCS.TPU,
     using a debug file named MYDEBUG.TPU:

        $ EDIT/TPU myprocs.tpu /DEBUG=mydebug

  DECTPU assumes the debug file is in SYSSHARE.  If your debug file is
  stored elsewhere, specify the device (disk) and directory of that
  file.  You cannot use wildcards to specify the debug file.  You can
  use only one debug file at a time.  Default file type is .TPU.

6.11    /DISPLAY

  /DISPLAY[={CHARACTER_CELL (default) | DECWINDOWS | MOTIF}]
  /NODISPLAY

  Determines the type of screen display, if any.  /DISPLAY is the same
  as /INTERFACE.

  For example, the following command invokes DECTPU with the Motif
  DECwindows interface:

     $ EDIT/TPU /DISPLAY=DECWINDOWS

  Then, if DECwindows Motif is available, DECTPU displays the editing
  session in a separate window on your workstation screen and enables
  DECwindows features---for example, the EVE screen layout then
  includes a menu bar and scroll bars, and you can use M1 to move the
  cursor and select text.  If DECwindows is not available, DECTPU works
  as if on a character-cell terminal.  For information about using EVE
  on DECwindows, use the online help in EVE and read the topic called
  DECwindows Differences.

  To specify your preferred display, you can define the logical name
  TPU$DISPLAY_MANAGER as CHARACTER_CELL, DECWINDOWS, or MOTIF.

  Use /NODISPLAY for batch jobs or when you are using an unsupported
  terminal.  For batch jobs, you typically use a DECTPU command file or
  EVE initialization file, as in the following example, which uses a
  command file named BATCH.TPU:

     EDIT/TPU /NODISPLAY /COMMAND=batch

  This batch file should comprise a complete editing session, including
  EXIT or QUIT.  Note that some EVE commands cannot be used in batch
  because they prompt for a key press or other interactive response.

6.12    /INITIALIZATION

  /INITIALIZATION[=init-file] (default)
  /NOINITIALIZATION

  Determines the initialization file you want to use, if any.
  Processing this qualifier depends on the DECTPU application you are
  using.  An EVE initialization file contains a list of EVE commands
  you want executed, typically to set margins, tab stops, and other
  attributes, or to define keys that you do not otherwise save in a
  section file.

  You cannot use wildcards to specify the initialization file.  You can
  specify only one initialization file at a time.  Default file type is
  .EVE.

  There are three ways to specify the EVE initialization file you want
  to use:

  o  Name the initialization file EVE$INIT.EVE.

     By default, EVE first looks for this initialization file in your
     current directory.  If the file is not found there, EVE then looks
     for it in SYS$LOGIN (your top-level, login directory).  Thus, you
     can have different initialization files for different directories
     or subdirectories, and you can have a "standard" initialization
     file in SYS$LOGIN for editing in directories that do not have an
     EVE$INIT.EVE file.

  o  Define the EVE$INIT logical name to specify the initialization
     file.

     This lets you use that initialization file for all editing
     sessions---including when you invoke DECTPU within MAIL or other
     utilities---and lets you keep that file in any convenient
     directory or subdirectory.  Defining the logical name overrides
     the search for the EVE$INIT.EVE file.  If you omit parts of the
     file specification from the logical name definition---for example,
     if you do not specify a device (disk)---EVE supplies them from
     SYS$DISK:EVE$INIT.EVE or SYS$LOGINEVE$INIT.EVE.  You can put the
     definition in your LOGIN.COM file.  For example, the following
     commands define EVE$INIT as MYINIT.EVE in your top-level, login
     directory and then invoke EVE using that initialization file:

        $ DEFINE EVE$INIT sys$login:myinit
        $ EDIT/TPU

  o  Use /INITIALIZATION= and specify the initialization file on the
     command line.

     This overrides any definition of the EVE$INIT logical name and
     overrides the default search for the EVE$INIT.EVE file.  If you
     omit parts of the file specification---for example, if you do not
     specify a device (disk)---EVE supplies them first from the logical
     name (if defined), and then from SYS$DISK:EVE$INIT.EVE or
     SYS$LOGINEVE$INIT.EVE.  For example, the following command invokes
     EVE, using an initialization file named MYINIT.EVE in your
     current, default directory:

        $ EDIT/TPU /INITIALIZATION=myinit

  If you do not want an initialization file executed, use
  /NOINITIALIZATION---typically if you defined the EVE$INIT logical
  name or created an EVE$INIT.EVE file but do not want it executed for
  a particular editing session.  Also, /NOINITIALIZATION makes startup
  faster because EVE then does not search for an initialization file
  and does not have to parse commands at startup.

  At startup, EVE executes an initialization file (if any) after DECTPU
  loads the section file and executes a command file (if any).  Thus,
  you can use an initialization file in conjunction with a DECTPU
  command file.  Settings and key definitions in an initialization file
  override those in a section file or command file.  When you invoke
  EVE, commands in an initialization file for margins, tab stops, and
  other buffer settings apply to the MAIN buffer (or buffers initially
  created from your input files) and to an EVE system buffer named
  $DEFAULTS$.  Buffers created during the session will have the same
  settings as $DEFAULTS$.  For more information, use the online help in
  EVE and read the topic called Defaults.

  If a command in an initialization file is incomplete---for example,
  if a command requires a file name, search string, or other parameter
  ---EVE prompts you for the required information before going on.  You
  can also execute an initialization file during an EVE session by
  using the @ command (at sign).  This is useful to execute a series of
  related commands or to set attributes or define keys for particular
  kinds of editing.

  An initialization file is somewhat slower than a section file or
  DECTPU command file, depending on the number of commands to be
  executed.  If you want to define several keys, you should save them
  in a section file.  For more information, see the Extensible
  Versatile Editor Reference Manual or use the online help in EVE and
  read the topic called Initialization Files.

6.13    /INTERFACE

  /INTERFACE[={CHARACTER_CELL (default) | DECWINDOWS |MOTIF}]

  Same as /DISPLAY---determines the interface or screen display you
  want.  For example, the following command invokes DECTPU with the
  DECwindows Motif interface:

     $ EDIT/TPU /INTERFACE=DECWINDOWS

  Then, if DECwindows Motif is available, DECTPU displays the editing
  session in a separate window on your workstation screen and enables
  DECwindows features---for example, the EVE screen layout includes a
  menu bar and scroll bars, and you can use M1 to move the cursor and
  select text.  If DECwindows Motif is not available, DECTPU works as
  if on a character-cell terminal.  For information about using EVE on
  DECwindows, use the online help in EVE and read the topic called
  DECwindows Differences.

6.14    /JOURNAL

  /JOURNAL[=journal-file] (default)
  /NOJOURNAL

  Determines the type of journaling, if any.  Journaling records your
  edits so that if a system failure interrupts your editing session,
  you can recover your work.  Processing this qualifier depends on the
  DECTPU application you are using.

  Normally, journal files are deleted when you exit or quit.  If a
  system failure occurs during your editing session, such as a break in
  communications between your terminal and computer, the journal files
  are saved.  For information about recovering your work, see help on
  /RECOVER.

  +--------------------------  NOTE  --------------------------+
  | Journal files record information about the text you edit.  |
  | Therefore, if you are editing confidential data, make sure |
  | the journal files, as well as the text files, are secure.  |
  +------------------------------------------------------------+

  There are two types of journaling, as follows:

  o  Buffer-change journaling creates a journal file for each text
     buffer.  This is the EVE default.  Buffer-change journaling works
     on DECwindows or character-cell terminals.  The journal file name
     derives from the name of the file or buffer being edited and the
     file type .TPU$JOURNAL---for example:

        Text buffers          Buffer-change journal files
        -------------------------------------------------
        MAIN                  MAIN.TPU$JOURNAL
        JABBER.TXT            JABBER_TXT.TPU$JOURNAL
        GUMBO_RECIPE.RNO      GUMBO_RECIPE_RNO.TPU$JOURNAL
        NEW TEST DATA         NEW_TEST_DATA.TPU$JOURNAL
        * TEMP *              __TEMP__.TPU$JOURNAL

     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.  Because buffer-change
     journal files may be quite large---even larger than the files you
     edit---you may want to define TPU$JOURNAL as a different disk and
     directory.

     Some editing operations may be slower because of buffer-change
     journaling, depending on the type or extent of changes, such as
     cutting a large box, or pasting a large amount of text from the
     DECwindows clipboard.

  o  Keystroke journaling creates a single journal file for the editing
     session, regardless of the number of buffers you create.  The
     journal file records every keystroke in the editing session,
     whether text or commands.  To enable keystroke journaling, use
     /JOURNAL= and specify the journal file you want created.  You
     cannot use wildcards to specify the keystroke journal file.
     Default file type is .TJL.

     For example, the following command invokes DECTPU creating a
     keystroke journal file named MYJOURNAL.TJL in your current,
     default directory:

        $ EDIT/TPU /JOURNAL=myjournal

     Keystroke journaling does NOT work on DECwindows and has other
     restrictions affecting recovery (see help on /RECOVER).  Keystroke
     journaling is useful to reproduce a problem (for example, if you
     want to submit an SPR) or to journal an editing session in which
     you create LEARN sequences and define keys interactively.

  If you use keystroke journaling, EVE also creates a buffer-change
  journal file for each text buffer.  This double journaling may slow
  performance, depending on the kind of edits you make.  To disable
  buffer-change journaling for a particular buffer or for all your
  buffers, use SET NOJOURNALING commands during your editing session.

  If you do not want any journaling, use /NOJOURNAL, which disables
  both keystroke journaling and buffer-change journaling.  This may
  make startup and some editing operations faster but risks losing your
  work if a system failure occurs during the editing session.
  Typically you use /NOJOURNAL if you are also using /NOMODIFY,
  /NOOUTPUT, /READ_ONLY, or /NOWRITE to view a file without making any
  changes.  If you invoke EVE with /NOJOURNAL, you can enable buffer-
  change journaling during your editing session by using SET JOURNALING
  commands.

  For more information about journaling and recovery, see the
  Extensible Versatile Editor Reference Manual or use the online help
  in EVE and read the topic called Journal Files.

  +-----------------------------  NOTE  ------------------------------+
  | Although journaling and recovery are quite reliable, the last few |
  | edits before a system failure may be lost.  The safest way to     |
  | protect your work against a system failure is to write out your   |
  | edits frequently---particularly during all-day editing sessions.  |
  +-------------------------------------------------------------------+

6.15    /MODIFY

  /MODIFY    (default)
  /NOMODIFY

  Determines whether you can modify the main (or first) buffer.  If you
  specify multiple input files on the EDIT/TPU command line, this
  qualifier applies to each buffer.  Does not affect other buffers you
  create during the editing session.

  By default, DECTPU lets the buffer be modified---you can edit text in
  the buffer, and exiting writes out the buffer to a file, if the
  buffer has been modified (unless you used /NOWRITE or /READ_ONLY).
  Use /NOMODIFY to view a file without making any changes.  You can
  then use cursor-movement commands but cannot change the text.  If you
  do not specify /MODIFY or /NOMODIFY, the application is expected to
  determine the default behavior.  For EVE, the main buffer is made
  modifiable (as well as buffers initially created from your input
  files).

  For EVE, using /READ_ONLY or /NOWRITE makes the buffer unmodifiable
  unless you also use /MODIFY.  For example, the following command
  edits a file named PRACTICE.TXT, making the buffer read-only and
  making it modifiable, so you can practice editing or test procedures
  without writing a file:

     $ EDIT/TPU practice.txt /READ_ONLY /MODIFY

  In EVE, the status line shows whether the buffer is unmodifiable.  If
  the buffer is modifiable, the status line shows the mode (insert or
  overstrike).  You can change the modification attribute of the buffer
  during your editing session by using the SET BUFFER command.

6.16    /OUTPUT

  /OUTPUT[=output-file] (default)
  /NOOUTPUT

  Determines the output file, if any, for the main (or first) buffer.
  If you specify multiple input files on the EDIT/TPU command line,
  this qualifier applies to each buffer.  Does not affect other buffers
  you create during the editing session.

  By default, the output file has the same specifications as the input
  file with a version number one higher than the highest version of the
  input file, or version 1 if you are creating a new file.

  Use /OUTPUT= and specify a file if you want the output file written
  in a different directory or to have a different name or file type.
  For example, the following command edits a file named ROUGH.LIS in
  your current directory and, on exiting, writes the output file to
  FINAL.TXT in your top-level, login directory:

     $ EDIT/TPU rough.lis /OUTPUT=sys$login:final.txt

  You cannot use wildcards to specify the output file---you specify one
  output file at a time.  There is no default file type.  If you omit
  the file type or other parts of the output file specification, such
  as the device (disk) or directory, EVE uses the corresponding parts
  of the input file specification, if there is one.

  In EVE, using /OUTPUT= and specifying an output file modifies the
  buffer, so that even if you make no changes to the text, exiting
  writes the buffer to the specified output file.

  In EVE, using /NOOUTPUT sets the MAIN (or first) buffer to read-only
  (sometimes called write-locked), so that exiting does not write out
  that buffer to a file.  This is useful to view a file without making
  any changes.  If you change your mind and want to write out the
  buffer before exiting, use the WRITE FILE, SAVE FILE, or SAVE FILE AS
  command.  Also, you can change the read/write attribute of the buffer
  during your editing session by using the SET BUFFER command.

  Be careful using the /OUTPUT qualifier when you specify multiple
  input files because the qualifier applies to all input files on the
  EDIT/TPU command line.  If you specify an output file name and type,
  each buffer created from an input file would have the same output
  file name and type.

  You can use the /OUTPUT qualifier with multiple input files to write
  the output files to a different disk or directory.  For example, the
  following command invokes EVE such that each output file has the same
  name as the original input file but is written to the [.NEW]
  directory:

     $ EDIT/TPU /OUT=[.NEW] a.txt,b.txt,c.rno,d.tmp

6.17    /READ_ONLY

  /READ_ONLY
  /NOREAD_ONLY (default)

  Determines whether exiting writes the main (or first) buffer to a
  file.  If you specify multiple input files on the EDIT/TPU command
  line, this qualifier applies to each buffer.  Does not affect other
  buffers you create during the editing session.

  /READ_ONLY is the same as /NOWRITE.  For EVE, this makes the MAIN (or
  first) buffer write-locked and also makes it unmodifiable, unless you
  used /MODIFY.  Use /READ_ONLY to view a file without making any
  changes.  For example, the following command lets you view a file
  named MEMO.TXT, so you can use cursor-movement commands but cannot
  change the text:

     $ EDIT/TPU memo.txt /READ_ONLY

  /NOREAD_ONLY is the same as /WRITE---on exiting, EVE writes out the
  MAIN (or first) buffer to a file if the buffer has been modified, and
  if necessary, EVE prompts you for the output file name.

  In EVE, the status line shows whether the buffer is read-only or
  write.  Also, you can change the read/write and modification
  attributes of the buffer during your editing session by using the SET
  BUFFER command.

6.18    /RECOVER

  /RECOVER
  /NORECOVER (default)

  Determines whether DECTPU recovers your edits by reading the journal
  file from the interrupted editing session.  (See help on /JOURNAL.)

  There are two ways to recover your edits, depending on the type of
  journaling you used:

  o  If you used buffer-change journaling, which is the EVE default,
     you can recover one or more buffers at a time and you can recover
     buffers from different editing sessions.  For example, the
     following command invokes EVE to recover the text of a file named
     JABBER.TXT:

        $ EDIT/TPU jabber.txt /RECOVER

     This is the same as invoking EVE and using the following command:

        Command:  RECOVER BUFFER jabber.txt

     If there is more than one buffer-change journal file with the same
     name---for example, you may have two or more MAIN.TPU$JOURNAL
     files from different editing sessions---the recovery uses the
     highest version number available.  To recover several text
     buffers, one after another, use the RECOVER BUFFER ALL command.

     Recovery with a buffer-change journal file restores only your text
     ---it does not restore settings, key definitions, and other
     customizations and it does not restore the contents of the Insert
     Here buffer or other system buffers.  The recovery is usually
     quite fast.  New text or other changes are then journaled.

     The recovery does not re-create deleted files.  If you deleted or
     renamed the source file associated with a buffer-change journal,
     the recovery fails.  The source file is either the file initially
     read into the buffer (if any), or the last version of the file
     written from the buffer before the system failure.

     If you specify multiple input files on the EDIT/TPU command line,
     EVE tries to recover each file.

  o  If you used keystroke journaling, you recover your editing session
     by reissuing the same command for the original, aborted editing
     session---including all qualifiers---and adding /RECOVER.  EVE
     then recovers your editing session in a "player piano" fashion.
     For example, the following commands invoke DECTPU creating a
     keystroke journal file, and then, after a system failure, recover
     the editing session:

        $ EDIT/TPU /JOURNAL=myjournal.tjl
                   .
                   .
        ***  system failure  ***
                   .
                   .
        $ EDIT/TPU /JOURNAL=myjournal.tjl /RECOVER

     Typically, after the recovery, you exit to save your edits.

  Keystroke journaling does not work on DECwindows and has other
  restrictions, as follows.  These restrictions do NOT apply to buffer-
  change journaling.

  o  To recover your edits with a keystroke journal file, all relevant
     files must be in the same state as at the start of the session
     being recovered---including any files you wrote out (saved) before
     the system failure.  Therefore, before doing the recovery, you
     should rename the saved versions or move them to a different
     directory, to ensure that the recovery uses the original versions
     of the files.  You must specify multiple input files in the same
     order as in the original command line.

  o  Check that any logical names for your section file, command file,
     and initialization file are defined as for the original editing
     session, and that the recovery will use the correct version of
     these files.

  o  Check that the following terminal settings are the same as when
     you began the original editing session, because they may affect
     how your keystrokes are replayed:

        Device_Type
        Edit_mode
        Eightbit
        Page
        Width

  o  Recovery with a keystroke journal file may fail or may not work
     properly if you used CTRL/C during the original editing session.
     CTRL/C is not recorded in the keystroke journal file.  Therefore,
     during recovery, an operation that was canceled with CTRL/C is
     replayed without interruption; this is likely to affect how the
     remaining keystrokes are replayed.

  o  If you used EVE in a subprocess (as a "kept" editor), the
     keystroke journal file records ATTACH, DCL, and SPAWN commands in
     EVE, but does not record operations done in the other process or
     subprocess.  If these other operations affected any files used in
     the original editing session---for example, if you spawned a
     subprocess from EVE and then purged, renamed, deleted, or modified
     any relevant files---the recovery may fail or may not work
     properly.

  o  If you used the EVE command DCL, the recovery with a keystroke
     journal file may fail or may not work properly, particularly if
     you cut a file name from a directory list in the DCL buffer, and
     pasted it into an EVE command line.  The keystroke recovery
     replays the operations, but the directory list or the file name
     may not be the same as in the original session.

  For more information about journaling and recovery, see the
  Extensible Versatile Editor Reference Manual or use the online help
  in EVE and read the topic called Journal Files.

  +-----------------------------  NOTE  ------------------------------+
  | Although journaling and recovery are quite reliable, the last few |
  | edits before a system failure may be lost.  The safest way to     |
  | protect your work against a system failure is to write out your   |
  | edits frequently---particularly during all-day editing sessions.  |
  +-------------------------------------------------------------------+

6.19    /SECTION

  /SECTION[=section-file] (default)
  /NOSECTION

  Determines the section file you want to use, if any.  A section file
  contains, in binary form, key definitions, compiled procedures, and
  other extensions.  Effectively, the section file is the DECTPU
  application you run---whether a customized version of EVE or an
  application you have created.

  DECTPU assumes the section file is in SYS$SHARE.  If your section
  file is stored elsewhere, specify the device (disk) and directory of
  that file.  You cannot use wildcards to specify the section file.
  You use only one section file at a time.  Default file type is
  .TPU$SECTION.

  The default section file is defined system-wide by the logical name
  TPU$SECTION, which specifies the standard EVE section file---
  EVE$SECTION.TPU$SECTION.

  There are two ways to specify the section file you want to use:

  o  Define the TPU$SECTION logical name to specify the section file.

     This lets you use that section file for all editing sessions---
     including when you invoke DECTPU within MAIL or other utilities.
     Your definition overrides the system-wide default.  You can put
     the definition in your LOGIN.COM file.  For example, the following
     commands define the default section file as MYSECTION.TPU$SECTION
     in your top-level, login directory and invoke DECTPU using that
     section file instead of the standard EVE section file:

        $ DEFINE TPU$SECTION sys$login:mysection
        $ EDIT/TPU

  o  Use /SECTION= and specify the section file on the command line.

     This overrides any definition of the TPU$SECTION logical name,
     whether a definition of your own or the system-wide default.  For
     example, the following command invokes DECTPU, using a section
     file named MYSECTION.TPU$SECTION in your top-level, login
     directory:

        $ EDIT/TPU /SECTION=sys$login:mysection

  If you do not want DECTPU to use any section file, use /NOSECTION.
  This prevents even the default EVE interface from being used.  DECTPU
  will be unusable unless you specify a command file with DECTPU
  procedures and executable statements that set up a text-processing
  environment.  Use /NOSECTION when you are creating your own
  application without using EVE as a base or if you are using
  /NODISPLAY for batch editing.  For example, the following command
  invokes DECTPU without a section file, using a command file named
  USER_APPL.TPU:

     $ EDIT/TPU /NOSECTION /COMMAND=user_appl /NODISPLAY

  At startup, DECTPU first loads a section file, if one is being used,
  before compiling and executing a command file (if any) and before EVE
  executes an initialization file (if any).  Thus, procedures,
  settings, and key definitions in a command file (.TPU) or
  initialization file (.EVE) override those in a section file.

  To create a section file, do either of the following:

  o  In EVE, use the SAVE EXTENDED EVE command.  For example, the
     following command creates a section file named
     MYSECTION.TPU$SECTION in your current, default directory:

        Command: SAVE EXTENDED EVE mysection
        DISK$1:[USER]MYSECTION.TPU$SECTION;1 created
        903 procedures, 1168 variables, 621 keys saved

  o  In a DECTPU command file, use the SAVE built-in, usually at the
     end of the command file.  For example, the following statements
     create a section file named MYSECTION.TPU$SECTION in your top-
     level, login directory:

        SAVE ("sys$login:mysection"); ! Create the section file
        EXIT;                         ! Done---end of command file

  A section file is cumulative; it saves the current key definitions
  and other customizations---and those already in the section file you
  are using.  In EVE, the section file saves the following:

     *  Compiled procedures (your own and EVE's)
     *  Global settings ("attributes")
     *  Key definitions and LEARN sequences
     *  Menu definitions for the DECwindows interface

  A section file usually does NOT save the following:

     *  Margins, tab stops, and other buffer settings
     *  Width or number of windows
     *  Contents of EVE system buffers, such as the Insert Here buffer

  A section file created with the DECwindows interface will work on
  character-cell terminals and conversely.  However, some DECwindows
  features are not available on character-cell terminals (such as
  shifted function keys and the clipboard).

  +-----------------------------  NOTE  -----------------------------+
  | A section file created on OpenVMS will work on ULTRIX and        |
  | conversely so long as the procedures and statements saved do not |
  | involve system-specific features and differences, such as file   |
  | names, directories, and so on.                                   |
  +------------------------------------------------------------------+

  For more information, see the DEC Text Processing Utility Reference
  Manual or Extensible Versatile Editor Reference Manual, or use the
  online help in EVE and read the topic called Section Files.

6.20    /START_POSITION

  /START_POSITION=(row[,column])

  Determines the row and column where the cursor first appears in the
  main (or first) buffer.  If you specify multiple input files on the
  EDIT/TPU command line, this qualifier applies to each buffer.  Does
  not affect other buffers you create during the editing session.

  For EVE, the default start position is 1,1, which is the upper left
  corner of the MAIN (or first) buffer---row 1, column 1.  Does not
  affect the initial cursor position when you create other buffers
  during the editing session and does not limit the buffer size.

  Use /START_POSITION to begin editing at a particular line (or row) or
  at a particular character position (or column), such as when you want
  to skip over a standard heading in a file, or if a batch log file or
  error message tells you there is an error on a given line of a
  program, you can specify that line number as the starting row, so
  that when you edit the program source file, the cursor moves directly
  to that line.  For example, the following command edits a file named
  TEST.COM, putting the cursor on line 10, column 5:

     $ EDIT/TPU test.com /START_POSITION=(10,5)

  If you simply want to begin editing at the start of a particular line
  in the buffer or input file, you can omit the second parameter (the
  column) and you need not use parentheses.  For example, the following
  command edits a file named MEMO.TXT putting the cursor at the start
  of line 10:

     $ EDIT/TPU memo.txt /START_POSITION=10

6.21    /WORK

  /WORK[=work-file] (default)
  /NOWORK

  Determines the work file, if any, that DECTPU uses to swap memory for
  editing very large files.  The work file is automatically deleted
  when you exit.  If you invoke DECTPU and disable the /WORK qualifier,
  DECTPU does not have a work file.  In this case, the amount of memory
  available to DECTPU limits the size of the files you can edit.

  You cannot use wildcards to specify the work file.  There is one work
  file per editing session.  Default file type is .TPU$WORK.

  By default, DECTPU creates a work file named TPU$WORK.TPU$WORK in
  SYS$SCRATCH, which is usually your top-level, login directory.  There
  are two ways to specify a different work file:

  o  Define the TPU$WORK logical name to specify the work file.

     This is useful if you want the work file created in an area other
     than SYS$SCRATCH, such as on a larger disk.  You can put the
     definition in your LOGIN.COM file.

  o  Use /WORK= and specify the work file you want created.

     This overrides any definition of the TPU$WORK logical name.  For
     example, the following command invokes DECTPU, specifying the work
     file to be MYWORK.TPU$WORK:

        $ EDIT/TPU /WORK=mywork

  To create the work file in an area other than SYS$SCRATCH, specify
  the device (disk) and directory of the work file.

  If you not want DECTPU to create a workfile, use /NOWORK.  This
  reduces consumption of system resources and makes startup faster.
  Generally, you can use /NOWORK unless your system has limited memory
  or unless you edit very large files or large numbers of files.

6.22    /WRITE

  /WRITE    (default)
  /NOWRITE

  Determines whether exiting writes the main (or first) buffer to a
  file.  If you specify multiple input files on the EDIT/TPU command
  line, this qualifier applies to each buffer.  Does not affect other
  buffers you create during the editing session.

  /WRITE is the same as /NOREAD_ONLY---on exiting, EVE writes out the
  MAIN (or first) buffer to a file if the buffer has been modified, and
  if necessary, EVE prompts you for the output file name.

  /NOWRITE is the same as /READ_ONLY.  For EVE, this makes the MAIN (or
  first) buffer write-locked and also makes it unmodifiable, unless you
  used /MODIFY.  Use /NOWRITE to view a file without making any
  changes.  For example, the following command lets you view a file
  named STAFFMEMO.TXT, so you can use cursor-movement commands but
  cannot change the text:

     $ EDIT/TPU staffmemo.txt /NOWRITE

  In EVE, the status line shows whether the buffer is read-only or
  write.  Also, you can change the read/write and modification
  attributes of the buffer during your editing session by using the SET
  BUFFER command.
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