# git revision control system

## Specific actions

### Changing the email address for commits in the repo

Before you do this, be sure to `git config user.email <email address>`.

#### The last unpushed commit

```bash
git commit --amend --author="username <email address>"
```

#### All commits

This will rewrite a bunch of the history. Try not to do this on public repos that you share with others. From https://stackoverflow.com/a/60364176

* Install [filter-repo](https://github.com/newren/git-filter-repo)
* Use the following:

```bash
git filter-repo --email-callback 'return email.replace(b"old@email.address", b"new@email.address")'
```

* This destroys the `origin` ref pointer. Put it back, then force push:

```bash
git remote add origin ssh://what.evern/
git push -f
```