[Git] Remove Files from Staging Before Committing

If you've added files to the staging area (the Index) accidentally - you can remove them using git reset.

We'll first add a file to staging, but then back it out with:

git reset HEAD filename

in order to pull it back to the working directory, so it doesn't end up in a commit when we don't want it to.

You created a new file lib.js

You have add to stating area.

git status
git add .

But later you find out that you don't want to add lib.js

git log --oneline

Run:

git reset HEAD lib.js

It will untrack lib.js file.