vi is a unix/linux program for editing text files
it’s very old and cludgy and difficult but sometimes you have to deal with it to get a system up and running.

like right now, i’m building a new FreeBSD laptop but can’t connect to the wireless to install pico or nano (Nice text editors)
I like to create a script to configure wireless, bring up the wireless, set an IP Address, associate with the base station but i have to use vi to write the script to do all this.

Anyhow, my philosophy on unix is to do things the most difficult way to learn the most.

 

a enter insertion mode after current character text, ESC
b back word
c change command cursor motion command
d delete command cursor motion command
e end of word
f find character after cursor in current line character to find
g UNBOUND
h move left one character
i enter insertion mode before current character text, ESC
j move down one line
k move up one line
l move right one character
m mark current line and position mark character tag (a-z)
n repeat last search
o open line below and enter insertion mode text, ESC
p put buffer after cursor
q UNBOUND
r replace single character at cursor replacement character expected
s substitute single character with new text text, ESC
t same as “f” but cursor moves to just before found character character to find
u undo
v UNBOUND
w move foreward one word
x delete single character
y yank command cursor motion command
z position current line CR = top; “.” = center; “-“=bottom
A enter insertion mode after end of line text, ESC
B move back one Word
C change to end of line text, ESC
D delete to end of line
E move to end of Word
F backwards version of “f” character to find
G goto line number prefixed, or goto end if none
H home cursor – goto first line on screen
I enter insertion mode before first non-whitespace character text, ESC
J join current line with next line
K UNBOUND
L goto last line on screen
M goto middle line on screen
N repeat last search, but in opposite direction of original search
O open line above and enter insertion mode text, ESC
P put buffer before cursor
Q leave visual mode (go into “ex” mode)
R replace mode – replaces through end of current line, then inserts text, ESC
S substitute entire line – deletes line, enters insertion mode text, ESC
T backwards version of “t” character to find
U restores line to state when cursor was moved into it
V UNBOUND
W foreward Word
X delete backwards single character
Y yank entire line
Z first half of quick save-and-exit “Z”
0 move to column zero
1-9 numeric precursor to other commands [additional numbers (0-9)] command
(SPACE) move right one character
! shell command filter cursor motion command, shell command
@ vi eval buffer name (a-z)
# UNBOUND
$ move to end of line
% match nearest [],(),{} on line, to its match (same line or others)
^ move to first non-whitespace character of line
& repeat last ex substitution (“:s …”) not including modifiers
* UNBOUND
( move to previous sentence
) move to next sentence
\ UNBOUND
| move to column zero
move to first non-whitespace of previous line
_ similar to “^” but uses numeric prefix oddly
= UNBOUND
+ move to first non-whitespace of next line
[ move to previous “{…}” section “[“
] move to next “{…}” section “]”
{ move to previous blank-line separated section “{“
} move to next blank-line separated section “}”
; repeat last “f”, “F”, “t”, or “T” command
move to marked line, first non-whitespace character tag (a-z)
` move to marked line, memorized column character tag (a-z)
: ex-submode ex command
access numbered buffer; load or access lettered buffer 1-9,a-z
~ reverse case of current character and move cursor forward
, reverse direction of last “f”, “F”, “t”, or “T” command
. repeat last text-changing command
/ search forward search string, ESC or CR
< unindent command cursor motion command
> indent command cursor motion command
? search backward search string, ESC or CR
^A UNBOUND
^B back (up) one screen
^C UNBOUND
^D down half screen
^E scroll text up (cursor doesn’t move unless it has to)
^F foreward (down) one screen
^G show status
^H backspace
^I (TAB) UNBOUND
^J line down
^K UNBOUND
^L refresh screen
^M (CR) move to first non-whitespace of next line
^N move down one line
^O UNBOUND
^P move up one line
^Q XON
^R does nothing (variants: redraw; multiple-redo)
^S XOFF
^T go to the file/code you were editing before the last tag jump
^U up half screen
^V UNBOUND
^W UNBOUND
^X UNBOUND
^Y scroll text down (cursor doesn’t move unless it has to)
^Z suspend program
^[ (ESC) cancel started command; otherwise UNBOUND
^\ leave visual mode (go into “ex” mode)
^] use word at cursor to lookup function in tags file, edit that file/code
^^ switch file buffers
^_ UNBOUND
^? (DELETE) UNBOUND