[[!comment format=mdwn
 username="http://joeyh.name/"
 ip="4.152.108.27"
 subject="comment 4"
 date="2012-11-12T15:17:53Z"
 content="""
Let's suppose you delete a file from git, and sync the deletion. Later, you can run `git annex unused` and it will find content not needed by any branch of the git repository. And if you choose, you can use `git annex dropunused` to delete that content.
"""]]
