How do you cycle between next and previous buffers?
:bn and :bp
Use :bn (bnext) to go to the next buffer and :bp (bprevious) to go to the previous one.
All Vim Tricks
How do you run a command across all open buffers?
:bufdo %s/old/new/g
Use :bufdo to execute a command in every buffer.
How do you switch to a buffer by partial name?
:b name
Use :b with a partial filename.
How do you switch to a buffer by its number?
:b3
Use :b followed by the buffer number.
How do you delete all hidden buffers in Vim?
:call DeleteHiddenBuffers()
Define a function or use a plugin.
How do you delete a specific buffer by its number?
:bd 3
Use :bd (bdelete) followed by the buffer number.
How do you yank the same text to multiple registers?
"ayy"byy
Yank the line twice into different registers.
How do you yank a single word into a named register?
"ayiw
Use "a to specify register a, then yiw to yank the inner word.
How do you yank lines between two marks into a register?
"a:'a,'by
Set marks with ma and mb, then yank the range between them into register a using "a:'a,'by.
How do you yank an entire paragraph into a named register?
"ayip
Use "ayip to yank the inner paragraph into register a.
How do you yank a sentence into a named register?
"ayis
Use "ayis to yank the inner sentence into register a.
How do you yank a visual block selection to a register?
<C-v>jjll"ay
Enter visual block mode with , select the block, then "ay to yank the block into register a.
How do you yank the entire file contents into a register?
gg"aVGy
Go to the first line with gg, then visually select from there to the last line with VG, and yank into register a.
How do you yank an entire function body into a register?
"aVaBy
Position cursor in a function, use VaB to visually select the block including braces, then "ay to yank into register a.
How do you use text from one register inside a macro?
qa"bpq
While recording macro a, paste from register b with "bp.
How do you use a register value in a substitute command?
:%s/<C-r>a/replacement/g
In command-line mode, a inserts the contents of register a.
What is the unnamed register and how does it work?
""p
The unnamed register "" is the default target for yank, delete, and change operations.
How do you set the search register programmatically?
:let @/ = 'pattern'
Use :let @/ = 'pattern' to set the search register directly.
What is the selection register in Vim and how do you use it?
"*p
The register represents the primary selection (middle-click paste in X11).
How do you set a register programmatically in Vim?
:call setreg('a', 'text')
Use setreg() to set register contents from Vimscript.