Today I want to show you, how to rewrite GIT's history and change the author's email using git-filter-branch command.

Suppose, that you forget to setup you GIT config correctly, and all commits from you have wrong email. For example, all commits are made by Vasya Pupkin . Of cause, you want to correct this information, and git-filter-branch will help you.

Here is a simple call for git-filter-branch:

git-filter-branch \
--env-filter 'export GIT_AUTHOR_EMAIL="vasya@gmail.com"'

This command will rewrite all commits' information and change email to vasya@gmail.com. If you want, more smart behaviour can be added using shell statements like if.

Thats it. And don't forget to make a backup before you'll try to rewrite The History! :-)