git ignore file type code example

Example 1: gitignore folder

in .gitignore:
	folder/

Example 2: what to add to gitignore

Look at this awesome site!
https://www.toptal.com/developers/gitignore
Generates a gitignore for you, based on the technologies you're using

Example 3: how to git ignore a file

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

Example 4: git ignore not saving changes

git rm -rf --cached .
git add .