Replace committer/author name and email with one in the whole Git branch

git_replace_author.sh

#!/bin/sh

git filter-branch -f --env-filter '
CORRECT_NAME="YourUsername"
CORRECT_EMAIL="[email protected]"
if [ "$GIT_COMMITTER_NAME" != "$CORRECT_NAME" ]
then
    export GIT_COMMITTER_NAME="$CORRECT_NAME"
    export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"
fi
if [ "$GIT_AUTHOR_NAME" != "$CORRECT_NAME" ]
then
    export GIT_AUTHOR_NAME="$CORRECT_NAME"
    export GIT_AUTHOR_EMAIL="$CORRECT_EMAIL"
fi
' --tag-name-filter cat -- --branches --tags