Vim

Cheatsheet

h, j, k, l: Move cursor left, down, up, right
w, b: Jump forwards / backwards single word
W, B: Jump forwards / backwards single ‘word’ (black separated)
0, $: Jump to the start / end of the line
^: Jump to the first non-blank character of the line
%: Jump to matching character (e.g., (), {}, [])
gg, G: Jump to the beginning / end of the file
f_, F_: Jump to next / previous occurrence of _
t_, T_: Jump to after next / previous occurrence of _
;: Repeat last jump
}, {: Jump to next / previous paragraph
zz: Centre cursor on screen
<C-e>, <C-y>: Move screen down / up one line, without moving cursor
<C-b>, <C-f>: Move screen down / up one page, moving cursor to the last / first line
<C-d>, <C-u>: Move screen down / up half page

i, a: Insert mode before / after the cursor
I, A: Insert mode at the beginning / end of the line
o, O: Insert a new line below / above the current line and enter insert mode
r: Replace a single character.
R: Replace character until pressing ESC.
J, gJ: Join the line below to the current one, with / without single space inbetween
cc (= S): Replace entire line
u, C-r: Undo / Redo
.: Repeat last command

v: Start visual mode
V: Start linewise visual mode
o: Move to the other end of the marked area
a_, i_: Around / Inside _
- e.g., aw: Around word, i(: Inside ()
y: Yank marked text
d: Cut marked text
~: Switch case
u, U: Change to lowercase / uppercase
>, <: Shift text right / left
<C-a>, <C-x>: Increment / decrement by [count] the number or alphabetic character in the highlighted text
g<C-a>, g<C-x>: Same as <C-a> / <C-x> but if several lines are highlighted, each will be incremented / decremented by an additional [count]
:set wrap: Wrap text around terminal

/_, ?_: Search forwards / backwards for pattern _
n, N: Next / previous in search results
:[range]s/{pattern}/{string}/[flags] [count]: For each line in [range] replace a match of {pattern} with {string}
- Flags
  - c: Confirm each substitution
  - e: When the search pattern fails, do not issue an error message and continue in maps as if no error occurred
  - g: Replace all occurrences in the line
  - i, I: Ignore / do not ignore case for the pattern
  - n: Report the number of matches, do not actually substitute
<C-q>: Add search results to quickfix list (e.g., after telescope search)
- :cdo {command}: Runs a command on each line in the quickfix list
- :cfdo {command}: Runs a command on each file in the quickfix list

:enew: Open new empty buffer
:bd: Close current buffer
- :bd {BUFNO}: Close a specific buffer with number {BUFNO}
- :bd!: Force close buffer without saving
- :bufdo bd: Close all buffers except the current one
- :bufdo bd!: Close all buffers except the current one without saving