How configure a global gitignore file?

A global gitignore is important for not add always the same information to ignore in our local repositories. If you want to configure this you should create a file with the information that you know that always will be ignore, for example I have created a file named ~/.global-gitignore in user path:

# Folder view configuration files
.DS_Store
Desktop.ini
# Thumbnail cache files
Get fab’s stories in your inbox
Join Medium for free to get updates from this writer.
Remember me for faster sign in
._*
Thumbs.db
...

After to created this file only is need load this in git configuration, for to do this you could run this command in your console:

git config --global core.excludesfile ~/.global-gitignore

And, it’s ready. Now by default the extensions that you added in this file will be ignored in your repositories