git-scripts

git_author_reset

git filter-branch -f --env-filter '

an="$GIT_AUTHOR_NAME"
am="$GIT_AUTHOR_EMAIL"
cn="$GIT_COMMITTER_NAME"
cm="$GIT_COMMITTER_EMAIL"

if [ "$GIT_COMMITTER_EMAIL" = "old@email.com" ]
then
cn="author name"
cm="new@email.com"
fi

if [ "$GIT_AUTHOR_EMAIL" = "old@email.com" ]
then
an="author name"
am="new@email.com"
fi

export GIT_AUTHOR_NAME="$an"
export GIT_AUTHOR_EMAIL="$am"
export GIT_COMMITTER_NAME="$cn"
export GIT_COMMITTER_EMAIL="$cm"
'

git_filter_history

git filter-branch -f --tree-filter '
find -type f -name "my_file*" -exec sed -i -e "2,28d" -i -e "/\/\*\// r /tmp/replace.txt"  -i -e "1d" "{}" \;
' -- --all