How do I change the case of a specific column of text using visual block mode?
<C-v>jjlU
Visual block mode lets you select rectangular regions of text, which means you can target a specific column and apply case changes only to that area.
All Vim Tricks
How do I fix the indentation of a code block without affecting surrounding code?
=i{
When editing code with messy indentation — after a paste, a merge conflict, or a refactor — you often need to fix just one block rather than the entire file
How do I open a file in a new tab or switch to it if it is already open?
:tab drop filename
When working with many tabs, you often want to open a file — but only if it is not already open somewhere.
How do I modify the contents of a register without re-recording it?
:let @a = substitute(@a, 'old', 'new', 'g')
After recording a macro or yanking text into a named register, you may need to tweak it — fix a typo in a recorded macro, change a variable name in yanked tex
How do I search for a pattern only within specific columns of a line?
/\%>10c\%<20cpattern
When working with columnar data like CSV files, log files, or fixed-width records, you often need to match a pattern only when it appears in a specific column r
How do I turn a visual selection of lines into a numbered list?
:s/^/\=line('.') - line("'<") + 1 . '. '/
When you need to quickly number a set of lines — such as TODO items, steps, or bullet points — you can use a visual selection combined with a substitution e
visual-mode #visual-mode #editing #ex-commands #formatting #substitute
How do I move all lines matching a pattern to the top or bottom of a file?
:g/pattern/m 0
The :global command combined with :move lets you restructure a file by relocating all lines that match a pattern.
How do I load Vim's optional built-in packages like matchit or editorconfig on demand?
:packadd {package}
Vim ships with several useful packages in its opt/ directory that are not loaded by default.
How do I diff two files that are already open in Vim splits?
:diffthis
You often have two files open side by side and want to compare them without leaving Vim or launching vimdiff.
How do I find which Vim scripts or functions are slow and causing performance issues?
:profile start profile.log
When Vim feels sluggish, the built-in :profile command lets you measure exactly how much time each script and function consumes.
How do I run a substitute command without changing my current search pattern?
:keeppattern s/old/new/g
When you run a :s or :g command, Vim updates the search register (@/) with the pattern you used.
How do I insert a literal control character or special key in insert mode?
<C-v>{char}
When you need to insert a literal tab character despite expandtab being set, or embed a control character like ^M (carriage return) into your text, in insert mo
editing #editing #insert-mode #special-characters #control-characters
How do I search for tag definitions using a regex pattern instead of an exact name?
:tag /pattern
When working with ctags, you typically jump to exact tag names with .
How do I insert the same text multiple times without a macro or copy-paste?
80i-<Esc>
Vim's insert commands accept a count prefix that repeats everything you type.
How do I show context lines around each match when using the :global command?
:g/pattern/z#.5
The :global command is great for finding lines matching a pattern, but by default it only shows the matching lines themselves.
How do I find accidentally repeated words like 'the the' in a document?
/\(\<\w\+\>\)\_s\+\1\>
When writing or editing text, repeated words like "the the" or "is is" are a common typo that spell checkers often miss.
How do I move the cursor to the other end of a visual selection to adjust it?
v_o
When you start a visual selection, the cursor is at one end and the anchor is at the other.
How do I search for text that appears after or before a specific pattern without including the pattern in the match?
/\v(pattern)@<=match
Vim supports zero-width assertions (lookahead and lookbehind) in its regex engine.
search #search #regex #advanced-search #lookahead #lookbehind
How do I paste text and leave the cursor after the pasted content instead of on it?
gp
The standard p command pastes text after the cursor but leaves the cursor at the beginning of the pasted text.
How do I quickly re-insert the text I just typed without leaving insert mode?
<C-a> (in insert mode)
While in insert mode, pressing re-inserts whatever text you typed during your previous insert session.