git filter-branch

git config --global alias.change-commits "!f() { VAR=$1; OLD=$2; NEW=$3; shift 3; git filter-branch --env-filter "if [[ \"$`echo $VAR`\" = '$OLD' ]]; then export $VAR='$NEW'; fi" $@; }; f "

git change-commits GIT_AUTHOR_NAME "старое имя" "новое имя"

git change-commits GIT_AUTHOR_EMAIL "old@email.com" "new@email.com"

git change-commits GIT_AUTHOR_EMAIL "old@email.com" "new@email.com" HEAD~10..HEAD