git filter-branch -f --env-filter 'UPDATE_NAME="username"UPDATE_EMAIL="user@mailadress"if [ "$GIT_COMMITTER_EMAIL" = "old@mail.com" ]then export GIT_AUTHOR_NAME="$UPDATE_NAME" export GIT_COMMITTER_NAME="$UPDATE_NAME" export GIT_COMMITTER_EMAIL="$UPDATE_EMAIL"fiif [ "$GIT_AUTHOR_EMAIL" = "old@mail.com" ]then export GIT_AUTHOR_NAME="$UPDATE_NAME" export GIT_COMMITTER_NAME="$UPDATE_N..