Does git commit -a automatically index all files in a single session, or even when working with a repository?

Answer 1

Could you explain more ?

Answer 2

There is such a command in git in the "git commit -a" console that it makes the changed files initialize automatically, and there is no need to add the "git add" command every time, if I enter the command "git commit -a" and close the command line Will there be automatic initialization later?