Git

Git is version control software. You can think of git to be the equivalent of saving a document in a program like Word that keeps track of every version of your work, and allows you to share those versions with other people and collaborate in a way that won't have you overwriting each other's changes.

There are many alternatives to git, but it has become a standard for developers in large part because of github.com, a service for hosting code using git.

The best way to start learning git (and GitHub) is to visit try.github.com. You should also try githug, a game for learning git.

Project website:

http://git scm.com/

Install

download / install: http://git scm.com/downloads

If you are using a Mac, you can install using homebrew:

~~~~~~~~ brew install git ~~~~~~~~

For more information about homebrew, check out the project's homepage: brew.sh.

On Debian/Ubuntu, install using apt get:

~~~~~~~~ apt get install git ~~~~~~~~

For Windows machines, download git from the git website: git scm.com/downloads

Documentation

docs: http://git scm.com/documentation

Basics

Here are some basics of using git:

Create a git repository:

~~~~~~~~ cd name of folder git init ~~~~~~~~

Add files:

~~~~~~~~ git add name of file

// or add all files in directory:

git add . ~~~~~~~~

When you add files to a git repository they are "staged" and ready to be committed.

Remove files:

~~~~~~~~ git rm name of file

// force removal of files:

git rm rf name of file or directory ~~~~~~~~

Commit files and add a message using the -m option:

~~~~~~~~ git commit m 'a message describing the commit' ~~~~~~~~

Create a branch:

~~~~~~~~ git branch name of branch ~~~~~~~~

Checkout a branch:

~~~~~~~~ git checkout name of branch ~~~~~~~~

Shortcut for creating a new branch and checking it out:

~~~~~~~~ git checkout b name of branch ~~~~~~~~

Merge a branch into the master branch:

~~~~~~~~ git checkout master git merge name of branch ~~~~~~~~

Add a remote repository:

~~~~~~~~ git remote add origin [email protected]:yourname/projectname.git ~~~~~~~~

List associated repositories:

~~~~~~~~ git remote v ~~~~~~~~

Pull changes from a remote repository:

~~~~~~~~ git pull origin master ~~~~~~~~

Push changes to a remote repository

~~~~~~~~ git push origin master ~~~~~~~~

Checkout a remote branch:

~~~~~~~~ git checkout t origin/haml ~~~~~~~~

Resources

Official documentation

The official git documentation has an API reference, a book about git, videos instructing on basic usage of git, and a page of links to useful resources.

try.github.io

This interactive tutorial is a great introduction to both git and GitHub. Highly recommended.

gitready.com

I often refer to gitready.com for various tips and tricks for using git.

help.github.com

The help section of GitHub's site has instructions for using github.com, but it also has some great documentation for using git.

Resources

• Website
• Downloads
• Documentation
• Pro Git book
• Source
• Try Git