How can you automatically remove trailing whitespace in vim

Question

I am getting \'trailing whitespace\' errors trying to commit some files in git.

I want to remove these trailing whitespace characters automatically right before I sa

Answer 1

Here's a way to filter by more than one FileType.

autocmd FileType c,cpp,python,ruby,java autocmd BufWritePre <buffer> :%s/\s\+$//e