Get handy stats from a git repo

git.md

• Show the first commit: git log --reverse --max-count=1
• Non-merge commits to master: git rev-list --no-merges master --count
• Number of non-merge commits in master per author: git shortlog -s -n --no-merges master
• Merges to master: git rev-list --merges --first-parent master --count

If you want to see the commits in question, you can replace --count with something like --pretty=oneline.