# Set up a repository with a file and a .DS_Store file (made by macOS) git init -q echo "<h1>Hello World!</h1>" > index.html touch .DS_Store git config --global core.excludesfile ~/.gitignore_global # Add a pattern to the global ignore file echo ".DS_Store" > ~/.gitignore_global # .DS_Store is not listed, it is ignored in every repository now git status --short