vi Editor “Cheat Sheet” PDF VI “Cheat” Sheet. ACNS Bulletin

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VI "Cheat" Sheet

ACNS Bulletin ED-03

February 1995

File management commands

:w nameWrite edit buffer to file name :wq Write to file and quit :q! Quit without saving changes

ZZ Same as :wq

:sh Execute shell commands (d)

Window motions

d Scroll down (half a screen) u Scroll up (half a screen) f Page forward b Page backward /string Search forward ?string Search backward l Redraw screen g Display current line number and file information n Repeat search

N Repeat search reverse

G Go to last line

nG Go to line n :nGo to line n z Reposition window: cursor at top z. Reposition window: cursor in middle z- Reposition window: cursor at bottom

Cursor motions

H Upper left corner (home)

M Middle line

L Lower left corner

h Back a character j Down a line k Up a line ^ Beginning of line $ End of line l Forward a character w One word forward b Back one word fcFind c ; Repeat find (find next c)

Command mode versus input mode

Vi starts in command mode. The positioning commands operate only while vi is in command mode. You switch vi to input mode by entering any one of several vi input com- mands. (See next section.) Once in input mode, any charac- ter you type is taken to be text and is added to the file. You cannot execute any commands until you exit input mode.

To exit input mode, press the escape (Esc) key.

Input commands (end with Esc)

a Append after cursor i Insert before cursor o Open line below

O Open line above

:r fileInsert file after current line Any of these commands leaves vi in input mode until you press Esc. Pressing the RETURN key will not take you out of input mode.

Change commands (Input mode)

cw Change word (Esc) cc Change line (Esc) - blanks line c$ Change to end of line rcReplace character with c

R Replace (Esc) - typeover

s Substitute (Esc) - 1 char with string

S Substitute (Esc) - Rest of line with

text .Repeat last change

Changes during insert mode

h Back one character w Back one word u Back to beginning of insert vi Editor "Cheat Sheet"

Invoking vi: vi filename

Format of vi commands:[count][command](count repeats the effect of the command)

Deletion commands

dd or ndd Delete n lines to general buffer dw Delete word to general buffer dnw Delete n words d) Delete to end of sentence db Delete previous word

D Delete to end of line

x Delete character

Recovering deletions

p Put general buffer after cursor

P Put general buffer before cursor

Undo commands

u Undo last change

U Undo all changes on line

Rearrangement commands

yy or Y Yank (copy) line to general buffer "z6yy Yank 6 lines to buffer z yw Yank word to general buffer "a9dd Delete 9 lines to buffer a "A9dd Delete 9 lines; Append to buffer a "ap Put text from buffer a after cursor p Put general buffer after cursor

P Put general buffer before cursor

J Join lines

Parameters

:set list Show invisible characters :set nolist Don"t show invisible characters :set number Show line numbers :set nonumber Don"t show line numbers :set autoindent Indent after carriage return :set noautoindent Turn off autoindent :set showmatch Show matching sets of parentheses as they are typed :set noshowmatch Turn off showmatch :set showmode Display mode on last line of screen :set noshowmode Turn off showmode :set all Show values of all possible parameters

Move text from file old to file new

vi old "a10yy yank 10 lines to buffer a :w write work buffer :e newedit new file "ap put text from a after cursor :30,60w newWrite lines 30 to 60 in file new

Regular expressions (search strings)

Matches beginning of line

$Matches end of line .Matches any single character *Matches any previous character .*Matches any character

Search and replace commands

Syntax:

:[address]s/old_text/new_text/

Address components:

.Current line n Line number n .+m Current line plus m lines $Last line /string/ A line that contains "string" %Entire file [addr1],[addr2] Specifies a range

Examples:

The following example replaces only the first occur- rence of Banana with Kumquat in each of 11 lines starting with the current line (.) and continuing for the

10 that follow (.+10).

:.,.+10s/Banana/Kumquat

The following example replaces every occurrence

(caused by the g at the end of the command) of apple with pear. :%s/apple/pear/g The following example removes the last character from every line in the file. Use it if every line in the file ends with ^M as the result of a file transfer. Execute it when the cursor is on the first line of the file. :%s/.$//quotesdbs_dbs3.pdfusesText_6

[PDF] vi Editor “Cheat Sheet” VI “Cheat” Sheet. ACNS Bulletin

VI "Cheat" Sheet

ACNS Bulletin ED-03

February 1995

File management commands

ZZ Same as :wq

Window motions

N Repeat search reverse

G Go to last line

Cursor motions

H Upper left corner (home)

M Middle line

L Lower left corner

Command mode versus input mode

To exit input mode, press the escape (Esc) key.

Input commands (end with Esc)

O Open line above

Change commands (Input mode)

R Replace (Esc) - typeover

S Substitute (Esc) - Rest of line with

Changes during insert mode

Invoking vi: vi filename

Deletion commands

D Delete to end of line

Recovering deletions

P Put general buffer before cursor

Undo commands

U Undo all changes on line

Rearrangement commands

P Put general buffer before cursor

J Join lines

Parameters

Move text from file old to file new

Regular expressions (search strings)

Matches beginning of line

Search and replace commands

Syntax:

Address components:

Examples:

10 that follow (.+10).

The following example replaces every occurrence