Git for beginners: The definitive practical guide

Answer 1

Getting the latest Code

$ git pull   # fetches the code and merges it into 
                             # your working directory
$ git fetch   # fetches the code but does not merge
                              # it into your working directory

$ git pull --tag   # same as above but fetch tags as well
$ git fetch --tag   # you get the idea

That pretty much covers every case for getting the latest copy of the code from the remote repository.