Makes current commit in master the only initial commit in git (e.g. deletes all history)

clean-git-history.sh

#!/bin/sh

# Source: https://stackoverflow.com/questions/9683279/make-the-current-commit-the-only-initial-commit-in-a-git-repository/13102849#13102849

git checkout --orphan newBranch
git add -A  # Add all files and commit them
git commit
git branch -D master  # Deletes the master branch
git branch -m master  # Rename the current branch to master
git push -f origin master  # Force push master branch to github
git gc --aggressive --prune=all  # remove the old files