ED Command

The ED command creates or modifies file items or mvBASIC programs and invokes the Editor. The Editor is a line-oriented editor that displays each attribute for a file item on a separate line. It can be used to modify existing items or to create new items.

Format

ED [DICT] filename item-list [(options)]

Parameter(s)

DICT	Specifies the file dictionary.
filename	Name of the file that contains the items to be edited. filename can be the name of a dictionary file, a data file, or an mvBASIC program file.
item-list	List of items to be edited. item-list can include an mvBASIC program as well as items in either a dictionary or a data file. Multiple item-IDs can be entered. An asterisk () specifies all items in filename*.
options	The following options are supported:
	A	Turns on Assembler format.
	H	Displays data in hexadecimal format.
	M	Turns on Assembler macro expansion.
	S	When used with the A option, suppresses the display of object code. Otherwise the S option suppresses line numbers.
	Z	Suppresses TOP (top of item) and EOI (End Of Item) messages.

Description

When the Editor is invoked, the line pointer is positioned at the top of the item. The Editor prompt is a period (.). Only Editor commands can be entered at this prompt. For information on using the Editor, and Editor commands, see the Editor User Reference Manual.

Creating a New Item

The following example creates a new item in the CUSTOMERS file. The Editor prompts for the item-ID:

> ED CUSTOMERS

ITEM-ID: KENNARD.J

NEW ITEM

TOP

The new item-ID is KENNARD.J. The Editor commands can now be used to create the item.

Editing an Existing Item

The following example edits the item in the CUSTOMERS file whose item-ID is SMITH.A:

> ED CUSTOMERS SMITH.A

TOP

Creating an mvBASIC Program

The following example creates a new program called CUST-FIND in the mvBASIC program file BP:

> ED BP CUST-FIND

NEW ITEM

TOP

If CUST-FIND had not been entered on the command line, the Editor would have prompted for the item-ID.