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+---
+layout: default
+title: Change author info
+description: How to modify author info in your repo's history
+categories: intermediate
+---
+
+<p class="intro">If you need to modify the author info in your repo's history, you can do so with this script.</p>
+
+<p class="attention"><strong>Big bold warning</strong> This action is destructive to your repo's history.  It's best to do this on a clone, just in case.  Also beware that this should not be performed on a repo that has been shared with others.  Use at your own risk.</p>
+
+{% highlight bash %}
+#!/bin/sh
+
+git filter-branch --env-filter '
+
+an="$GIT_AUTHOR_NAME"
+am="$GIT_AUTHOR_EMAIL"
+cn="$GIT_COMMITTER_NAME"
+cm="$GIT_COMMITTER_EMAIL"
+
+if [ "$GIT_COMMITTER_EMAIL" = "your@email.to.match" ]
+then
+    cn="Your New Committer Name"
+    cm="Your New Committer Email"
+fi
+if [ "$GIT_AUTHOR_EMAIL" = "your@email.to.match" ]
+then
+    an="Your New Author Name"
+    am="Your New Author Email"
+fi
+
+export GIT_AUTHOR_NAME="$an"
+export GIT_AUTHOR_EMAIL="$am"
+export GIT_COMMITTER_NAME="$cn"
+export GIT_COMMITTER_EMAIL="$cm"
+'
+{% endhighlight %}
+\ No newline at end of file