checkout

To check out a repo:

git clone 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

The equivalent of "svn up" is

git pull

list branches

To see a list of current local branches:

git branch

To see all local and remote branches:

git branch -a

create a branch

Suppose you want to create a local branch to work on your latest and greatest new feature. To create a new branch and check it out all in one automagical command:

git checkout -b new_branch

If you want to create the branch and check it out seperately (maybe because you want to do something else in between or batch the creation of many branches/etc..)

merge

To merge the foobar branch into the current branch:

git merge foobar