How do I specify “the word under the cursor” on VIM's commandline?

Question

I want to write a command that specifies \"the word under the cursor\" in VIM. For instance, let\'s say I have the cursor on a word and I make it appear twice. For instance, i

Answer 1

ywPx

will do what you describe.

ywPxw

will also advance the cursor to the next word.

Answer 2

While in command-line mode, CTRL+R CTRL+W will insert the word under the cursor.

See the help for c_CTRL-R for a listing of all the other special registers:

:help c_CTRL-R

Answer 3

You need to escape the backslashes within the mapping. You can also include the substitution string within the mapping.

:nmap <leader>w :s/\\(<c-r>=expand("<cword>")<cr>\\)/\\1\\1<cr>

Answer 4

<cword> is the word under the cursor (:help <cword>).

Sorry, I should have been more complete in this answer.

You can nmap a command to it, or this series of keystrokes for the lazy will work:

b #go to beginning of current word
yw #yank to register

Then, when you are typing in your pattern you can hit <control-r>0<enter> which will paste in your command the contents of the 0-th register.

You can also make a command for this like:

:nmap <leader>w :s/\(<c-r>=expand("<cword>")<cr>\)/

Which will map hitting '\' and 'w' at the same time to replace your command line with

:s/\(<currentword>\)/

Answer 5

" count word  (case sensitive)
nmap <F4> :%s/\(<c-r>=expand("<cword>")<cr>\)//gn<cr>

Answer 6

yiwP

yiw: Yank inner word (the word under the cursor). This command also moves the cursor to the beginning of the word.

P: Paste before the cursor.

You can then map the e.g.: < ALT > - D to this command:

:nmap < ALT >-D yiwP