vi is a Visual Editor (hence the name -- vi for VIsual). vi is a widely-used and popular UNIX-based text editor. Like most UNIX system interfaces and other text editors, it lets you control the system by using the keyboard rather than a combination of mouse selections and keystrokes.
Edit a File
| Edit a file
from command prompt |
vi |
| Edit a file
from command prompt for reading only |
vi -R
|
| Edit a file
from within vi |
:e
|
| Edit a new
file from within vi, discard changes to current file |
:e!
|
| Reload current
file, discarding changes |
:e! |
| Go forwards a
page |
Ctrl+F (or PgDn) |
| Go backwards a
page |
Ctrl+B (or PgUp) |
| Move around
single lines or characters |
Arrow keys |
| Save changes |
:w |
| Save changes
and override protected (read-only) files |
:w! |
| Save changes
and exit vi |
ZZ |
| Quit |
:q |
| Quit and
discard changes |
:q! |
| Get general
help |
:help |
| Get help on a
command (eg. :set) |
:help set |
Go to lines, find matching text
| Go to line
1234 (do not see typing)
|
1234G
|
| Go to line
1234 (see typing)
|
:1234
|
| Go to start of
file
|
1G
|
| Go to end of
file
|
G
|
| Find
(forwards) a line containing "swordfish"
|
/swordfish
|
| Find
(forwards) a line using a regular expression
|
/you see .* here
|
| Repeat last
search
|
n
|
| Repeat last
search in opposite direction
|
N
|
| Find
(backwards) a line containing "swordfish"
|
?swordfish
|
| Find
(backwards) a line using a regular expression
|
?you see .* here
|
| Search case
insensitive (Ignore Case)
|
:set ic
|
| Search with
case sensitivity
|
:set noic
|
| Wrap searches
back to start of file
|
:set wrapscan
|
| Do not wrap
searches
|
:set nowrapscan
|
Insert Text
| Insert after
cursor
|
i
|
| Insert before
cursor
|
a
|
| Insert at
beginning of line
|
I
|
| Insert at end
of line (append)
|
A
|
| Open (start)
new line below cursor
|
o
|
| Open (start)
new line above cursor
|
O
|
Advance Deletion
|
Delete next 5
lines
|
5dd
|
|
Delete to end
of line
|
d$
|
|
Delete to
start of line
|
d0
|
|
Delete to word
"swordfish"
|
d/swordfish
|
|
Delete to the
letter "x"
|
dfx
|
|
Delete lines
10 to 20
|
:10,20d
|
|
Delete current
line and another 5 lines
|
:.,+5d
|
|
Delete all
lines
|
:%d
|
|
Delete current
word
|
dw
|
|
Find line
containing pattern, delete it
|
:/pattern/d
|
|
Find line
containing "dog", delete until line containing "cat"
|
:/dog/,/cat/d
|
|
Delete from
current line to line containing "foo"
|
:.,/foo/d
|
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