:s/\(\w\+\)/\u\1/g
Vim's substitute command supports case-change modifiers in the replacement string that let you capitalize, uppercase, or lowercase matched text as part of the s
:%s/pattern//n
The n flag in the substitute command suppresses the actual replacement and instead reports the match count.
:%s/\zsparseData\ze(/processData/g
Vim's \zs and \ze atoms let you include context in your search pattern without including that context in the replacement.
:g/pattern/join
The :g/pattern/join command combines the :global command with :join to merge every line matching a pattern with the line immediately following it.
command-line #ex-commands #editing #command-line #search #normal-mode
/\%d{decimal}
Vim's regex engine supports special atoms that match characters by their numeric value rather than their glyph.
:g/pattern1/s/pattern2/replacement/g
Combining :g with :s lets you apply a substitution using two independent patterns: :g selects which lines to act on, and :s controls what gets replaced within t
:let i=0 | g/pattern/s/pattern/\=printf('%d', i+=1)/
By combining :let, the :g global command, and an expression substitution with \=, you can replace every match of a pattern with a unique incrementing number.
\V
Vim's default search mode gives special meaning to characters like .
:%s/pattern/replacement/ge
The e flag on :substitute silences the "Pattern not found" error that Vim normally reports when a substitution has no matches.
:set nowrapscan
By default Vim's wrapscan option is enabled, which causes / and ? searches to wrap silently from the end of the file back to the beginning (and vice versa).
\@>
Vim's \@> syntax creates an atomic group in a regular expression.
1z=
The z= command opens an interactive numbered menu of spelling corrections for the word under the cursor, requiring you to type a number and press Enter.
zg
When Vim's spell checker flags a technical term, proper noun, or project-specific identifier as misspelled, you can permanently silence it with zg ("mark as goo
:call matchadd('ErrorMsg', 'TODO')
matchadd() lets you highlight arbitrary patterns using any highlight group — without touching the search register or search highlighting.
\@<=
The \@<= operator is Vim's zero-width look-behind assertion.
\%^ and \%$
Vim's ^ and $ anchors match the start and end of a line, but sometimes you need to match the very beginning or very end of the entire buffer.
:ldo {cmd}
Vim maintains two parallel systems for collections of file positions: the quickfix list (global, one per Vim session) and the location list (local to each windo
:g//d
:g//d uses an empty pattern in the global command, which instructs Vim to reuse the last search pattern.
/pattern1\&pattern2
Vim's \& operator lets you intersect two patterns so the match must satisfy both simultaneously.
\{-}
In Vim's regex engine, \{-} is the non-greedy (lazy) quantifier — it matches as few characters as possible, unlike .
