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Table 1. A sampling of supported terminals

ID string               Terminal type

2621,  2621b            Hewlett-Packard 2621
hp2621, etc.            

2621p                   Hewlett-Packard 2621 with printer

912b, tv912b            Televideo 912

950, tv950              Televideo 950

adm3a                   Lear Siegler ADM3a

c100                    HDS Concept 100

h19, h19A               Heathkit H19, H19 in ANSI-compatible mode

regent                  ADDS Regent series

tek, tek4012            Tektronix 4014 graphics terminal

vt100, vt100-w          DEC VT100, VT100 in wide mode (132 columns)

vt132                   DEC VT132

w50, w60, etc.          Wyse models 50, 60, etc.

Listing 1. The appearance of the editor screen

Note: This figure shows only approximations of how the screens will look. The actual appearance is subject to variations in the settings of various editor variables, such as the window dimensions and on the type of terminal you are using.

A. This is how the screen appears following the initial append command:

"Work consists of whatever a
body is obliged to do...
Play consists of whatever a
body is not obliged to do."
	      Mark Twain
~
~
~
~
~

B. This is how the screen appears following the insert command:

FAMOUS QUOTATIONS
-----------------
"Work consists of whatever a
body is obliged to do...
Play consists of whatever a
body is not obliged to do."
              Mark Twain
~
~
~
~

Table 2. Primary window and cursor-positioning commands

Command               Description

G                     Go to a specified line in the editing buffer.

h, BACKSPACE          Move to the previous character on the line.

j, ^N                 Move down one line (in same column if possible).

k, ^P                 Move up one line (in same column if possible).

l, SPACEBAR           Move to the next character on the line.

RETURN, +             Move to the beginning of the next line.

-                     Move to the beginning of the previous line.

^D                    Scroll down in the editing buffer.

^U                    Scroll up in the editing buffer.

^F                    Page forward in the editing buffer.

^B                    Page backward in the editing buffer.

Table 3. Essential actions and objects

A. Editor actions:

Action                 Description

c, cc                  Change the specified text. Enter replacement text
                       and terminate with <ESC>.

d, dd                  Delete the specified text. 

r                      Replace a single character. This command is 
                       self-completing (no terminating <ESC> needed).

R                      Replace mode (overtype). Terminate with <ESC>.

s                      Substitute for the specified text. Use a multiplier to  
                       specify the extent of the text deletion, and terminate
                       text input with <ESC>.

u                      Undo the previous action.

x                      Delete the character at the cursor and close up the line.

y                      Yank a copy of the specified text.

p, P                   Put the text from the unnamed buffer into the editing
                       P puts the text before the current 
                       character (or line), and p puts it after

.                      Repeat the previous command.

B. Basic text objects:

Object                 Description

^                      The beginning of the current line.

$                      The end of the current line.

w, W                   Beginning of the next word (W ignores
                       embedded punctuation).

b, B                   Beginning of the previous word (B
                       ignores embedded punctuation.

e, E                   End of the current word (E ignores
                       embedded punctuation).

(, )                   Beginning of the previous (next) sentence.

{, }                   Beginning of the previous (next) paragraph.

[[, ]]                 Beginning of the previous (next) section.