- From a current line:
:s/\s\+$//
- From entire file:
:%s/\s\+$//
Explanation:
-
%
= from whole file -
s
= search and replace -
\s\+$
= regex searching for spaces til the end of a line -
/
= replacement value (empty string)
Source: http://stackoverflow.com/questions/3474709/delete-all-spaces-and-tabs-at-the-end-of-my-lines