Show the last commit to each branch in a repo, sorted by date

gistfile1.txt

% cd (your git repo)
% for remote in `git branch -r | grep -v master | grep -v develop`; do git checkout --track $remote ; done

# Once you have all branches....

% git for-each-ref --sort=-committerdate refs/heads/ --format='%(committerdate:short)%09 %(refname:short)%09 %(authorname)' | column -t

# ... or just show me the same info for all merged branches

% for branch in `git branch --merged`; do git for-each-ref refs/heads/$branch --format='%(committerdate:short)%09 %(refname:short)%09 %(authorname)'; done | column -t | sort -rn