Git - Change history commits of an user

To set up right name and email in the future for commits, you need run command:

git config --global user.name "username"
git config --global user.email "[email protected]"

or put this in ~/.gitconfig file.

If you want to FIX pervious unauthored commits:

1. gith show to show WHICH WRONG email has been used.
2. Create a bare cllone of repo: git clone --bare https://github.com/username/repo.git
3. Replace OLD_EMAIL, CORRECT_NAME, CORRECT_EMAIL after cd to the repo and save this script in your repo.git with name change_user.sh

   #!/bin/sh

    git filter-branch --env-filter '

    OLD_EMAIL="[email protected]"
    CORRECT_NAME="Your Correct Name"
    CORRECT_EMAIL="[email protected]"

    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

run command: chmod +x change_user.sh && ./change_user.sh

1. Force push to Github: git push --force --tags origin 'refs/heads/*'