把如下代码保存为一个 .sh 的文件，放到项目(有 .git 目录)的根目录， 授执行权限，执行就可以了。
# !/bin/sh
git filter-branch --env-filter '
an="$GIT_AUTHOR_NAME"
am="$GIT_AUTHOR_EMAIL"
cn="$GIT_COMMITTER_NAME"
cm="$GIT_COMMITTER_EMAIL"
if [ "$GIT_COMMITTER_EMAIL" = "[email protected]" ]
then
cn="Dennis"
cm="[email protected]"
fi
if [ "$GIT_AUTHOR_EMAIL" = "[email protected]" ]
then
an="Dennis"
am="[email protected]"
fi
export GIT_AUTHOR_NAME="$an"
export GIT_AUTHOR_EMAIL="$am"
export GIT_COMMITTER_NAME="$cn"
export GIT_COMMITTER_EMAIL="$cm"
'