the command used to testing and editing programs
Answers
Edit syntax
EDIT [/B] [/H] [/R] [/S] [/<nnn>] [/?] [FileName...]
/B Forces monochrome mode.
/H Displays the maximum number of lines possible for your hardware.
/R Load file(s) in read-only mode.
/S Forces the use of short file names.
/<nnn> Load binary file(s), wrapping lines to <nnn> characters wide.
/? Display a summary of command line options.
[FileName...] Specifies initial files(s) to load. Wildcards and multiple file specs can be given.
Commands available in edit
Home Move cursor to the beginning of the line.
End Move cursor to the end of the line.
Ctrl+Up Scroll up one line.
Ctrl+Down Scroll down one line.
PageUp Scroll up one screen.
PageDown Scroll down one screen.
Ctrl+PageUp Scroll left one screen.
Ctrl+PageDown Scroll right one screen.
Ctrl+Home Scroll to the top of the document.
Ctrl+End Scroll to the bottom of the document.
Ctrl+Left Move left one word.
Ctrl+Right Move right one word.
Enter Starts a new line or moves text after cursor down.
Delete (Del) Deletes one character that cursor is on or currently selected text.
Backspace Deletes one character before the cursor.
Tab Moves cursor or text to the next tab stop, or indents line if at first character.
Insert Switch between insert and overwrite modes.
Ctrl+Y Deletes the current line.
Ctrl+V Pastes contents currently in the buffer, if any.
Ctrl+P Allows special characters to be inserted into edit.
Shift Using shift in combination with any of the above scrolling or moving commands highlights text, such as Ctrl+Shift+Right.
Ctrl+C Copies currently selected text into the buffer.
Ctrl+X Cuts the currently selected text into the buffer.
Shift+Tab Removes indents on the selected line.
Ctrl+Q+F Find text.
Ctrl+Q+A Find and replace text.
F3 Repeat the last search.
F6 Switch to the next edit window, if any.
Ctrl+F6 Open new edit window.
Ctrl+F4 Closes second edit window.
Ctrl+F8 Resizes edit window.
F1 Displays help.