git log --author="Hamm" --pretty=tformat: --numstat | awk '{ add += $1; subs += $2; loc += $1 - $2 } END { printf "added lines: %s, removed lines: %s, total lines: %s\n",
add, subs, loc }'
git log --pretty='%aN' | sort | uniq -c | sort -k1 -n -r | head -n 10
git log --pretty='%aN' | sort -u | wc -l