Rewrite Email / Name for commits (Doesn't change dates)

git-author.sh

#!/bin/sh

git filter-branch --env-filter '

OLD_EMAIL="email
CORRECT_NAME="name"
CORRECT_EMAIL="email"

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


#Then if other branches need to be updated

git update-ref -d refs/original/refs/heads/{branch}