How to run command over multiple buffers/tabs to remove trailing spaces?

Question

I have a command to tidy up excessive whitespace in my code in vim:

" to tidy excess whitespace
map <leader>1 :execute ':%s#\s\+$##g'<CR>

My question is, if I have 10 tabs or buffers open, how can I apply this command to all of them, rather than just going to each one and applying the command.

Answer 1

See this vim tip on using bufdo, windo, and tabdo.

Assuming all your buffers are in the buffer list, your map could be as simple as

" to tidy excess whitespace
map <leader>1 :execute ':bufdo! %s#\s\+$##g'<CR>