Vim: how to remove trailing whitespace on save

Tyler Tyler (282)

Trailing whitespace can be a real pain - especially when diffing changes between two versions of a file. Fortunately for vim users, there is an easy way to eliminate unwanted trailing whitespace without having to think about it.

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Your .vimrc file is typically located in your home directory. So you can edit it by typing:

vim ~/.vimrc

Then adding the following line to your .vimrc will ensure that every time you save a file (:w), it will remove all trailing whitespace.

autocmd BufWritePre * :%s/\s+$//e