After a Git pull, its output gives a summary on the change amount. How can I see each or some of the files detailed changes? Okay, here is my question to Jefromi: How do I know if I was pulling to master? All I did is "git pull". What does master point to and what is the difference between master and HEAD, the two default heads of Git? How do I see the detailed change in a specific file? How do I see the change in the summary output by the last git pull again? What's difference between git diff and git whatchanged ?

Detail change after Git pull

After a Git pull, its output gives a summary on the change amount.

How can I see each or some of the files detailed changes?

Okay, here is my question to Jefromi:

How do I know if I was pulling to master? All I did is "git pull".
What does master point to and what is the difference between master and HEAD, the two default heads of Git?
How do I see the detailed change in a specific file?
How do I see the change in the summary output by the last git pull again?
What's difference between git diff and git whatchanged?