NOTES ON VI

vi <file>

→ launch the editor (command line);

:q!

→ quit without saving;

ZZ

→ save and quit.

Editing mode

→ characters that are typed constitute the text of the document;

Command mode

→ characters that are typed call different commands.

i

→ toggle to editing mode, at the current cursor position;

a

→ toggle tp editing mode, one character after the current cursor position;

o

→ toggle to editing mode by creating a blank line below the current line;

O

→ toggle to editing mode by creating a blank line above the current line;

ESC

→ exit editing mode and go to command mode.

:w

→ save the current file;

:w <file>

→ save the current file as <file> ;

C-g

→ display the name of the current file and the number of lines.

The file ~/.vimrc contains preferences (syntax color, etc.).

C-f

→ go to the next page;

C-b

→ go to the previous page;

^

→ go to the beginning of the line;

$

→ go to the end of the line;

G

→ go to the last line;

<n>G

→ go to line <n>.

/<string>

→ search for <string> after the cursor position;

?<string>

→ recherche <string> before the cursor position;

n

→ go to the next occurence of the current search.

x

→ erase the character at the cursor position;

dw

→ erase the word at the cursor position;

D

→ erase the end of the line after the cursor;

dd

→ erase the whole line.

yy

→ copy the current line;

p

→ paste the copied line below the current line;

P

→ paste the copied line above the current line.

:1,$s/<str1>/<str2>/g

→ remplace <str1> by <str2> in the whole file;

:<n>,<m>s/<str1>/<str2>/g

→ remplace <str1> by <str2> between lines <n> and <m>.