How to remove trailing whitespaces for multiple files?

Question

Are there any tools / UNIX single liners which would remove trailing whitespaces for multiple files in-place.

E.g. one that could be used in the con

Answer 1

ex

Try using Ex editor (part of Vim):

$ ex +'bufdo!%s/\s\+$//e' -cxa *.*

^{Note: For recursion (bash4 & zsh), you can use a new globbing option (**/*.*). Enable by shopt -s globstar.}

perl

find . -type f -name "*.java" -exec perl -p -i -e "s/[ \t]$//g" {} \;

as per Spring Framework Code Style.

sed

For using sed, check: How to remove trailing whitespaces with sed?

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See also: How to remove trailing whitespace of all files recursively?