Invokes the TECO interactive text editor. The /TECO qualifier is
required.
Format
EDIT/TECO [file-name]
EDIT/TECO/EXECUTE=command-file [argument]
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.
2 – Qualifiers
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.
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$MEMORY. Normally, TECO creates a new file to match the
input file specification if it cannot find the requested file name
in the specified directory. When you use the /NOCREATE qualifier
in the TECO command line and type a specification for a file that
does not exist, TECO displays an error message and returns you to
the DCL command level. The /CREATE and /NOCREATE qualifiers are
incompatible with the /EXECUTE qualifier.
2.3 /EXECUTE
/EXECUTE=command-file [argument]
Invokes TECO and executes the TECO macro found in the command
file. The argument, if specified, appears in the text buffer
when macro execution starts. Blanks or special characters must
be enclosed in quotation marks (" "). For detailed information
on the use of TECO macros, see the PDP-11 TECO Editor Reference
Manual.
The /EXECUTE qualifier is incompatible with the /CREATE and
/MEMORY qualifiers.
2.4 /MEMORY
/MEMORY (default)
/NOMEMORY
Specifies that the last file you edited with TECO, identified by
the logical name TEC$MEMORY, will be the file edited if you omit
the file specification to the EDIT/TECO command.
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.
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.
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.