checkout

To check out a repo:

git checkout git://github.com/leto/parrot.git

There should now be a directory called "parrot" in your current directory.

commit

Next we modify a file so we can commit a change:

echo "Some junk" >> README

To see a list of modifies files:

git status

should produce something like

# On branch master
# Changed but not updated:
#   (use "git add <file>..." to update what will be committed)
#   (use "git checkout -- <file>..." to discard changes in working directory)
#
#	modified:   README
#

To commit all local changes:

git commit -a -m "I did some stuff"

If you had multiple changed files that you wanted to commit seperately, you would do

git add README
git commit -m "I commit stuff"

LESSON: Git only commits files you have added already. The -a flag lets you be lazy and say "go ahead and add all modified files" when you are commiting.

update

merge