Rewrite an author/committer in your git history. Place on your path and do: git change-committer name new_name new_email

git-change-committer

#!/bin/bash

usage() {
    echo "$0 usage:"
    echo "    $0 name new_name new_email"
    exit 1
}

if [ "$#" -ne 3 ]; then
    usage
fi

if ! git diff --quiet; then
        echo "You have uncommitted changes."

        exit 1
fi

export oa="$1"
export na="$2"
export ne="$3"

git filter-branch --env-filter '

an="$GIT_AUTHOR_NAME"
ae="$GIT_AUTHOR_EMAIL"
cn="$GIT_COMMITTER_NAME"
ce="$GIT_COMMITTER_EMAIL"

if [ "$an" = "$oa" ]; then
    an="$na"
    ae="$ne"
    cn="$na"
    ce="$ne"
fi

export GIT_AUTHOR_NAME="$an"
export GIT_AUTHOR_EMAIL="$ae"
export GIT_COMMITTER_NAME="$cn"
export GIT_COMMITTER_EMAIL="$ce"
'