How do I prevent cursor movement in insert mode from splitting the undo block?
inoremap <Left> <C-g>U<Left>
In insert mode, any cursor movement — including arrow keys, Home, and End — causes Vim to split the undo block at that point.
Search: G
795 results for "G"
How do I use expressions in Vim's substitute replacement?
:%s/pattern/\=expression/g
Vim's substitute command supports expression replacements using \= in the replacement string.
How do I reindent the whole buffer without adding jumplist entries?
:keepjumps normal! gg=G<CR>
Whole-buffer reindent is common, but doing it naively can pollute your jumplist and break navigation flow during review.
How do I create incrementing number sequences in Vim?
g<C-a>
The g command increments numbers across a visual selection so that each subsequent line gets a progressively higher value.
How do I delete all lines between two delimiter patterns without removing the delimiters themselves?
:g/BEGIN/+1,/END/-1 delete
By combining the :global command with a relative address range, you can delete the content between repeating delimiter pairs while leaving the delimiters intact
How do I use an expression in a substitution to perform arithmetic on matched numbers?
:%s/\(\d\+\)/\=submatch(1)+1/g
Vim's substitute command supports using a VimScript expression as the replacement by prefixing it with \=.
How do I uppercase only the characters inside a visual selection with :substitute?
:'<,'>s/\%V./\U&/g
When you need to transform text in-place without touching surrounding content, \%V is one of Vim's most precise tools.
How do I uppercase or lowercase matched text directly in a substitute command?
:%s/pattern/\U&/g
Vim's substitute replacement string supports special case-transform atoms that change the case of matched text without requiring a second pass or an external to
How do I rename a variable across all its case variants (camelCase, snake_case, SCREAMING_CASE) in one command?
:Subvert/{src}/{tgt}/g
vim-abolish provides :Subvert, a smarter substitute that detects and preserves the case style of each match.
How do I insert a newline in the replacement string of a :s substitution?
:s/,/,\r/g
In Vim's :substitute command, \r in the replacement string inserts a literal newline — it splits the line at that point.
How do I title-case every word in a buffer using one Vim substitution?
:%s/\v<(\w)(\w*)>/\u\1\L\2/g
When you need to normalize casing across headings, labels, or generated docs, editing words one by one is tedious.
How do I change the case of text using operators and motions?
gU{motion} / gu{motion} / g~{motion}
Vim has three case operators that work with any motion or text object: gU for uppercase, gu for lowercase, and g~ for toggle case.
editing #editing #case #operators #text-objects #normal-mode
How do I run a substitute command without overwriting my last search pattern?
:keeppatterns %s/old/new/g
The :keeppatterns modifier runs any Ex command without modifying Vim's last search pattern (stored in @/).
command-line #search #ex-commands #command-line #substitute #registers
How do I zero-pad or reformat numbers during a substitution using printf in Vim?
:%s/\d\+/\=printf('%03d', submatch(0))/g
Combining Vim's \= expression substitution with the printf() function lets you apply arbitrary formatting to matched text.
How do I make netrw display files in a tree-style directory listing?
:let g:netrw_liststyle = 3
By default, netrw shows files in a flat listing.
plugins #netrw #file-browser #plugins #configuration #built-in
How do I delete consecutive duplicate lines from a file using a single Ex command?
:g/\(.\+\)\n\1/d
The :g command with a backreference pattern can detect and delete consecutive duplicate lines in one pass.
How do I search and replace only within a visual block selection?
:'<,'>s/\%Vold/new/g
The \%V atom restricts a search pattern to match only within the visual selection area, including visual block selections.
How do I comment out all lines matching a pattern at once using vim-commentary?
:g/pattern/Commentary
vim-commentary exposes Commentary as an Ex command that toggles comments on the current line, making it composable with Vim's :global command.
How do I run a search and replace only within a visually selected region?
:'<,'>s/pattern/replacement/g
When you make a visual selection and then type :, Vim automatically inserts ' as the range — the marks for the start and end of the last visual selection.
How do I match text only when it is preceded by a specific pattern in Vim regex?
:%s/\(prefix\)\@<=target/replacement/g
Vim's \@<= is a zero-width look-behind assertion.