How do I change the default {{{ and }}} fold markers to custom delimiter strings?
set foldmarker=start,end
When using foldmethod=marker, Vim uses {{{ and }}} as the default fold open and close markers.
Tag: config
How do I manually re-trigger filetype-based autocmds without reopening the file?
:doautocmd FileType
When you change a buffer's filetype mid-session — say with :set filetype=python — Vim updates the filetype option but does not automatically re-run the File
How do I speed up Vim's insert mode completion by disabling include-file scanning?
:set complete-=i
Vim's complete option controls which sources are scanned when you press or to complete a word.
How do I assign a key to toggle paste mode on and off without typing :set paste each time?
:set pastetoggle=<F2>
The pastetoggle option assigns a single key to toggle Vim's paste mode on and off without typing :set paste or :set nopaste every time.
How do I diagnose slow Neovim startup and identify which plugins are taking the longest to load?
:Lazy profile
When Neovim starts slowly, finding the culprit plugin is tedious without tooling.
How do I display a single shared status line at the bottom of Neovim instead of one per split window?
:set laststatus=3
Neovim 0.
How do I customize the vertical split separator and fold indicator characters in Vim?
:set fillchars+=vert:│,fold:·
The fillchars option controls the filler characters Vim uses for various UI elements — window separators, fold fill lines, diff padding, and more.
How do I make the focused window automatically expand to a minimum size while keeping other windows visible?
:set winwidth=85 winheight=20
Setting winwidth and winheight tells Vim the minimum column width and line height the current focused window must have.
How do I configure what types of numbers Vim recognizes when using Ctrl-A and Ctrl-X to increment or decrement?
:set nrformats=
The nrformats option controls which number formats (increment) and (decrement) recognize.
How do I run normal mode commands in a script without triggering user-defined key mappings?
:normal! {cmd}
When you use :normal {cmd} in a Vimscript function, macro, or Ex command, Vim expands any keys through the user's current mappings first.
How do I make the indent width automatically match the tabstop setting without keeping them in sync manually?
:set shiftwidth=0
Setting shiftwidth=0 tells Vim to use the value of tabstop wherever shiftwidth would normally be consulted — for the > and and in insert mode, and auto-indent
How do I toggle a boolean Vim option on and off without typing the full :set option or :set nooption each time?
:set option!
For any boolean option, appending ! to :set inverts its current value.
How do I convert a file from Windows CRLF to Unix LF line endings in Vim?
:set fileformat=unix
When you open a Windows file in Vim on a Unix system, you may see ^M at the end of every line — that's the carriage return (\r) from CRLF line endings.
How do I make the = operator use an external formatter instead of Vim's built-in indentation?
:set equalprg={program}
The equalprg option replaces Vim's built-in = indentation operator with any external formatting program.
How do I define custom fold marker strings instead of the default {{{ }}} in Vim?
:set foldmarker=region,endregion
When using foldmethod=marker, Vim looks for the strings in foldmarker to identify fold boundaries.
How do I write a file in Vim without triggering BufWritePre or other write autocmds?
:noautocmd w
The :noautocmd modifier runs any Ex command while suppressing all autocmd events for its duration.
What built-in LSP keymaps does Neovim 0.10+ provide automatically when a language server is attached?
grn, gra, grr, gri
Starting with Neovim 0.
How do I make j and k navigate display lines normally but physical lines when given a count?
nnoremap <expr> j v:count == 0 ? 'gj' : 'j'
By default, j and k move by physical lines (newline-delimited), which jumps over the entire visual span of a long wrapped line in a single keystroke.
How do I make the tilde key work as a case-toggle operator so I can use motions like ~w or ~ip?
:set tildeop
By default, ~ toggles the case of a single character and advances the cursor.
How do I control which sources Vim searches when triggering keyword completion with Ctrl-N?
set complete=.,w,b,u,t
The complete option controls which sources Vim scans when you press or for generic keyword completion.