List unmerged branches with the latest commit message for each branch

git-branches-by-commit-date.sh

# Credit http://stackoverflow.com/a/2514279
for branch in `git branch --no-merged`;do echo -e `git show  --abbrev-commit --format="%ci %d %s" $branch | head -n 1`; done | sort -r

output.txt

# Example output (resulting from running command on the Rails repo and making a test branch — https://github.com/rails/rails)
2013-02-04 15:22:28 +0100 (test) Rails is called Railzzz now.