Shell Script for Change the author Git (https://www.git-tower.com/learn/git/faq/change-author-name-email)

change-author-git.sh

#!/bin/sh

git filter-branch --env-filter '

OLD_EMAIL="$1"
CORRECT_NAME="$2"
CORRECT_EMAIL="$3"

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