Interactive script that rewrites the Author's and Committer's name and email.

git-author-rewrite.sh

#!/bin/sh

read -e -p "Email address of author to update: " OLD_EMAIL
read -e -p "New name of author: " CORRECT_NAME
read -e -p "New email address of author: " CORRECT_EMAIL

git filter-branch --env-filter '

if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
then
    export GIT_COMMITTER_NAME="$CORRECT_NAME"
    export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"
fi
if [ "$GIT_AUTHOR_EMAIL" = "$OLD_EMAIL" ]
then
    export GIT_AUTHOR_NAME="$CORRECT_NAME"
    export GIT_AUTHOR_EMAIL="$CORRECT_EMAIL"
fi
' --tag-name-filter cat -- --branches --tags