How to duplicate a whole line in Vim?
VimEditorKeyboard ShortcutsViVim Problem Overview
How do I duplicate a whole line in Vim in a similar way to Ctrl+D in IntelliJ IDEA/ Resharper or Ctrl+Alt+↑/↓ in Eclipse?
Vim Solutions
Solution 1 - Vim
yy or Y to copy the line (mnemonic: yank)
or
dd to delete the line (Vim copies what you deleted into a clipboard-like "register", like a cut operation)
then
p to paste the copied or deleted text after the current line
or
P to paste the copied or deleted text before the current line
Solution 2 - Vim
Normal mode: see other answers.
The Ex way:
:t.will duplicate the line,:t 7will copy it after line 7,:,+t0will copy current and next line at the beginning of the file (,+is a synonym for the range.,.+1),:1,t$will copy lines from beginning till cursor position to the end (1,is a synonym for the range1,.).
If you need to move instead of copying, use :m instead of :t.
This can be really powerful if you combine it with :g or :v:
:v/foo/m$will move all lines not matching the pattern “foo” to the end of the file.:+,$g/^\s*class\s\+\i\+/t.will copy all subsequent lines of the formclass xxxright after the cursor.
Reference: :help range, :help :t, :help :g, :help :m and :help :v
Solution 3 - Vim
YP or Yp or yyp.
Solution 4 - Vim
Doesn't get any simpler than this! From normal mode:
yy
then move to the line you want to paste at and
p
Solution 5 - Vim
yy
will yank the current line without deleting it
dd
will delete the current line
p
will put a line grabbed by either of the previous methods
Solution 6 - Vim
Do this:
First, yy to copy the current line, and then p to paste.
Solution 7 - Vim
If you want another way:
"ayy:
This will store the line in buffer a.
"ap:
This will put the contents of buffer a at the cursor.
There are many variations on this.
"a5yy:
This will store the 5 lines in buffer a.
See "Vim help files for more fun.
Solution 8 - Vim
yyp - remember it with "yippee!"
Multiple lines with a number in between:
y7yp
Solution 9 - Vim
yyp - paste after
yyP - paste before
Solution 10 - Vim
I like: Shift+v (to select the whole line immediately and let you select other lines if you want), y, p
Solution 11 - Vim
Another option would be to go with:
nmap <C-d> mzyyp`z
gives you the advantage of preserving the cursor position.
Solution 12 - Vim
You can also try <C-x><C-l> which will repeat the last line from insert mode and brings you a completion window with all of the lines. It works almost like <C-p>
Solution 13 - Vim
For someone who doesn't know vi, some answers from above might mislead him with phrases like "paste ... after/before current line".
It's actually "paste ... after/before cursor".
yy or Y to copy the line
or
dd to delete the line
then
p to paste the copied or deleted text after the cursor
or
P to paste the copied or deleted text before the cursor
For more key bindings, you can visit this site: vi Complete Key Binding List
Solution 14 - Vim
I know I'm late to the party, but whatever; I have this in my .vimrc:
nnoremap <C-d> :copy .<CR>
vnoremap <C-d> :copy '><CR>
the :copy command just copies the selected line or the range (always whole lines) to below the line number given as its argument.
In normal mode what this does is copy . copy this line to just below this line.
And in visual mode it turns into '<,'> copy '> copy from start of selection to end of selection to the line below end of selection.
Solution 15 - Vim
Default is yyp, but I've been using this rebinding for a year or so and love it:
nnoremap Y yyp
vnoremap Y y`>pgv
Solution 16 - Vim
1 gotcha: when you use "p" to put the line, it puts it after the line your cursor is on, so if you want to add the line after the line you're yanking, don't move the cursor down a line before putting the new line.
Solution 17 - Vim
For those starting to learn vi, here is a good introduction to vi by listing side by side vi commands to typical Windows GUI Editor cursor movement and shortcut keys. It lists all the basic commands including yy (copy line) and p (paste after) or P(paste before).
Solution 18 - Vim
If you would like to duplicate a line and paste it right away below the current like, just like in Sublime Ctrl+Shift+D, then you can add this to your .vimrc file.
nmap <S-C-d> <Esc>Yp
Or, for Insert mode:
imap <S-C-d> <Esc>Ypa
Solution 19 - Vim
I prefer to define a custom keymap Ctrl+D in .vimrc to duplicate the current line both in normal mode and insert mode:
" duplicate line in normal mode:
nnoremap <C-D> Yp
" duplicate line in insert mode:
inoremap <C-D> <Esc> Ypi
Solution 20 - Vim
I like to use this mapping:
:nnoremap yp Yp
because it makes it consistent to use alongside the native YP command.
Solution 21 - Vim
I use this mapping, which is similar to vscode. I hope it is useful!!!.
nnoremap <A-d> :t. <CR>==
inoremap <A-d> <Esc>:t. <CR>==gi
vnoremap <A-d> :t$ <CR>gv=gv