In this exercise, you will need to select changes to add to the staging area.
You will need to use the command git add file [other-files...].
You may use it with the option -p
to select only a subset of the modifications inside a single filde.
To see what is already inside the staging area,
you may use the command git status.
The files highligted in green are in the staging area.
git diff --cached indicate the precise modifications that have been staged.
You may also use graphical tools such as Sourcetree or GitKraken.
INGInious