replace word in git history

replace_word_in_git_history.sh

git co master && git branch -D master-backup ; git co -b master-backup && git co master
ls -ra db/ | grep -E '\.![0-9]+\!' # should return no results
cat known/location/of/secret | grep secret # should return results

LC_CTYPE=C && LANG=C && git filter-branch --tree-filter "find . -type f -exec sed -i '' -e 's/secret/replacement/g' {} \;" -f
ls -ra db/ | grep -E '\.![0-9]+\!' # should return no results
cat known/location/of/secret | grep secret # should return no results
git filter-branch --tree-filter "grep -r 'secret' * || true"

git push -f origin master