Git系列2：Git Fetch Pull Push

• Fetch更新Tracking分支，但是不会更新local/master和HEAD指向

git fetch

• Pull更新Tracking分支，同时更新local/master和HEAD指向

git pull [<resp>] [<branch>]
--ff (default)
--no-ff
--ff-only
--rebase [--preserve-merges]

• Push
  git push [-u] [<repo>] [<branch>]
  -u Track this branch

git push -u origin master