Git commit opens blank text file, for what?

Question

In all the Git tutorials I\'ve read they say that you can do:

git init
git add .
git commit

When I do that I get a big text file opened up.

Answer 1

The following is probably the easiest way to commit all changes:

git commit -a -m "Type your commit message here..."

Of course there are much more detailed ways of committing, but that should get you started.