VIM-helper
https://devhints.io/vim
https://vim.rtorr.com/
vi command description
0 move to beginning of the current line
$ move to end of line
H move to the top of the current window (high)
M move to the middle of the current window (middle)
L move to the bottom line of the current window (low)
1G move to the first line of the file
20G move to the 20th line of the file
G move to the last line of the file
SAVE QUIT
:wq or :x or ZZ - write (save) and quit
GO TO LINE
:n Go to line n
nG Go to line n
COPY
yy - yank (copy) a line
2yy - yank (copy) 2 lines
yw - yank (copy) the characters of the word from the cursor position to the start of the next word
y$ - yank (copy) to end of line
Paste
p - put (paste) the clipboard after cursor
P - put (paste) before cursor
DELETE
dd - delete (cut) a line
2dd - delete (cut) 2 lines
dw - delete (cut) the characters of the word from the cursor position to the start of the next word
D - delete (cut) to the end of the line
d$ - delete (cut) to the end of the line
x - delete (cut) character
Cursor movement
h - move cursor left
j - move cursor down
k - move cursor up
l - move cursor right
H - move to top of screen
M - move to middle of screen
L - move to bottom of screen
w - jump forwards to the start of a word
Working with multiple files
:e file - edit a file in a new buffer
:bnext or :bn - go to the next buffer
:bprev or :bp - go to the previous buffer
:bd - delete a buffer (close a file)
:ls - list all open buffers
:sp file - open a file in a new buffer and split window
:vsp file - open a file in a new buffer and vertically split window
Ctrl + ws - split window
Ctrl + ww - switch windows
Ctrl + wq - quit a window
Ctrl + wv - split window vertically
Ctrl + wh - move cursor to the left window (vertical split)
Ctrl + wl - move cursor to the right window (vertical split)
Ctrl + wj - move cursor to the window below (horizontal split)
Ctrl + wk - move cursor to the window above (horizontal split)
Search and replace
/pattern - search for pattern
?pattern - search backward for pattern
\vpattern - 'very magic' pattern: non-alphanumeric characters are interpreted as special regex symbols (no escaping needed)
n - repeat search in same direction
N - repeat search in opposite direction
:%s/old/new/g - replace all old with new throughout file
:%s/old/new/gc - replace all old with new throughout file with confirmations
:noh - remove highlighting of search matches
Search in multiple files
:vimgrep /pattern/ {file} - search for pattern in multiple files
e.g.:vimgrep /foo/ */
:cn - jump to the next match
:cp - jump to the previous match
:copen - open a window containing the list of matches
