yvjanard

BASIC UNIX

VI  (Editor) : 

Presented in Different Formats for Convenient Learning:

1. Cursor Movement:

    h for left
    l  for right
    k for up
    j  for down

2. Save the file and exit

    ZZ
    :wq
    :x

Cursor Movement (command mode):
 
Scroll Backward 1 screen
[ctrl] b
 
Scroll Up 1/2 screen
[ctrl] u

Go to beginning of line
0

Go to line n
nG

Go to end of line
$
 
Scroll Down 1/2 screen
[ctrl] d

Go to line number ##
:##
 
Scroll Forward 1 screen
[ctrl] f
 
Go to last line
G

Scroll by sentence f/b
( )

Scroll by word f/b
w b

Move left, down, up, right
h j k l

Left 6 chars
6h

Scroll by paragraph f/b
{ }

Move left, down, up, right
← ↓ ↑ → Arrow Keys
ZZ Exit, saving changes t Up to forward Q Enter ex mode T Back up to Esc End of insert | Go to column : Execute ex command w,W Forward one word :! Shell command b,B Back one word ^g Show filename/size e,E End of word ^f Forward one screen ^h Erase last character ^b Back one screen ^w Erase last word ^d Forward half screen ^? Interrupt ^u Backward half screen ~ Toggle character case G Go to line a Append after / Search forward for i,I Insert before ? Search backward for A Append at end of line n Repeat last search o Open line below N Reverse last search O Open line above ]] Next section/function r Replace character [[ Previous section/function R Replace characters % Find matching () { or } d Delete ^l Redraw screen dd Delete line ^r Refresh screen c Change z Current line at top y Yank lines to buffer z- Current line at bottom C Change rest of line ^e Scroll down one line D Delete rest of line ^y Scroll up one line s Substitute character `` Previous context S Substitute lines H Home window line J Join lines L Last window line x Delete after M Middle window line X Delete before + Next line Y Yank current line hjkl Cursor movement: p Put back lines left/down/up/right P Put before 0 Beginning of line << Shift line left $ End of line >> Shift line right f Find forward u Undo last change F Find backward U Restore current line

Ex mode commands:

q Quit set Enable option q! Quit, discard changes set no Disable option r Read in file set all Show all options sh Invoke shell vi Vi mode wq Write and quit w Write file w! Overwrite file

Options:

autoindent Automatic line indentation autowrite Write before quit ignorecase Ignore case in searches number Display line numbers showmatch Show matches to ) and } as typed terse Quiet mode wrapscan Wraparound in searches wrapmargin Automatic line splitting
Presentation - 2

General Startup

 To use vi: vi filename
 To exit vi and save changes: ZZ   or  :wq
 To exit vi without saving changes: :q!
 To enter vi command mode: [esc]
 Counts A number preceding any vi command tells vi to repeat that command that many times. 

Cursor Movement

 h move left (backspace)

 j move down

 k move up

 l move right (spacebar)

 [return] move to the beginning of the next line

 $ last column on the current line

 0 move cursor to the first column on the 
 current line

 ^ move cursor to first nonblank column on the
 current line

 w move to the beginning of the next word or 
 punctuation mark

 W move past the next space

 b move to the beginning of the previous word 
 or punctuation mark

 B move to the beginning of the previous word,
 ignores punctuation

 e end of next word or punctuation mark

 E end of next word, ignoring punctuation

 H move cursor to the top of the screen 

 M move cursor to the middle of the screen

 L move cursor to the bottom of the screen 

Screen Movement G move to the last line in the file 

xG move to line x 

z+ move current line to top of screen 

z move current line to the middle of screen 

z- move current line to the bottom of screen 

^F move forward one screen 

^B move backward one line 

^D move forward one half screen 

^U move backward one half screen 

^R redraw screen ( does not work with VT100 type terminals ) 

^L redraw screen ( does not work with Televideo terminals ) 

Inserting r replace character under cursor with next character typed 

R keep replacing character until [esc] is hit 

i insert before cursor a append after cursor 

A append at end of line O open line above cursor and enter append mode 
Deleting x delete character under cursor 

dd delete line under cursor dw delete word under cursor 

db delete word before cursor 

e line under the cursor going forward

F finds a character on the line under the cursor going backwards

t find a character on
Copying Code yy (yank)'copies' line which may then be put by the p(put) command. Precede with a count for multiple lines. 
Put Command brings back previous deletion or yank of lines, words, or characters P bring back before cursor p bring back after cursor 
Find Commands ? finds a word going backwards / finds a word going forwards f finds a character on t
h the current line going forward and stop one character before it T find a character on the current line going backward and stop one character before it ; repeat last f, F, t, T 

rent line with the next line ^G display current line number % if at one parenthesis, will jump to its mate mx mark current line with character x 'x find line marked with character x NOTE: Marks are internal and not written to the file. 
Line Editor Mode
Any commands form the line editor ex can be issued upon entering line mode. To enter: type ':' To exit: press[return] or [esc] 
READING FILES copies (reads
Miscellaneous Commands . repeat last command u undoes last command issued U undoes all commands on one line xp deletes first character and inserts after second (swap) J join cu
r) filename after cursor in file currently editing :r filename 
WRITE FILE :w saves the current file without quitting 
MOVING :# move to line # :$ move to last line of file 
SHELL ESCAPE
executes 'cmd' as a shell command. :!'cmd'