Tip33: Insert the Current Word at the Command Prompt
January 12, 2021 ยท View on GitHub
<C-r><C-w>
copy the word under the cursor and insert it at the command-line prompt.
*
search for each occurrence that cursor positioned. and cursor jump forward to the next match. equal to typing
/\<<C-r><C-w>\><CR>
:%s//<C-r><C-w>/g
replace the others.