How do I undo a "git add" before a commit?

Question

I added by mistake arquivos using the command git add and I haven’t executed one yet git commit. There is a way to undo or remove these files from the commit?

Answer 1

To undo the inclusion of an item do:

git reset <nomearquivo>

If you did git add ., can undo the inclusion of all files at once by doing:

git reset