This document provides an overview of Git and GitHub. It defines Git as a distributed version control system that emphasizes speed, data integrity and distributed workflows. It explains the basic components and most useful commands for Git including initializing a repository, adding files, committing changes, checking status and branching. It then defines GitHub as a web-based hosting service for Git repositories that allows for collaboration. It concludes with instructions for connecting a local Git repository to GitHub and pushing/pulling changes.

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By Luis Lamadrid

2. But first…

3. A distributed version control system with
an emphasis on speed, data integrity, and
support for distributed, non-linear workflows.

4. Oversimplified: A collection of text files
that track the changes within your own
collection of text files.
folder_name $ git init

5. Working
Directory
Three essential parts of git
Staging
Area
Local
Repository
(backstage) (on stage) (snapshot)
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7. Branches
A lightweight movable pointer to one of the
commits. The default branch name in Git is
master.

8. Graphical Branches
master
x_branch
time
mergecommit
branch
creation

9. Most Useful Commands
$ git init
$ git add .
$ git commit -m “Message”
$ git checkout [-b] branch_name or commit_hash
To initialize a repository:
To add all files to staging area:
To add staged files to local repository
To [change / create] branch or go back to previous version:
$ git merge br1 br2
To combine two branches:
$ git status
To check the status of the repo:

10. Working Directory
$ git status
On branch master
Initial commit
Untracked files:
(use "git add <file>..." to include in what will be committed)
comments.txt
cpp_code.cpp
ruby_code.rb
nothing added to commit but untracked files present (use "git add" to
track)
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11. Staging Area
$ git add .
$ git status
On branch master
Initial commit
Changes to be committed:
(use "git rm --cached <file>..." to unstage)
new file: comments.txt
new file: cpp_code.cpp
new file: ruby_code.rb
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12. Local Repository
$ git commit -m "My First Commit"
[master (root-commit) 1e74cf1] My First Commit
3 files changed, 0 insertions(+), 0 deletions(-)
create mode 100644 comments.txt
create mode 100644 cpp_code.cpp
create mode 100644 ruby_code.rb
(master) $ git status
On branch master
nothing to commit, working directory clean
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13. Now…GitHub!

14. A web-based Git repository hosting service,
which offers all of the distributed revision control
and source code management (SCM) functionality
of Git as well as adding its own features.

15. Oversimplified: A connection between you and
your teammates (cloud server).

16. Connecting Your Local
Repository To GitHub
$ git remote add origin https://github.com/Username/Repo.git
$ git push [-u] origin master [or branch_name]
To add a remote:
To push the changes to the newly created repo:

17. Most Useful Commands
$ git push origin [-u] branch_name
$ git pull origin branch_name
To upload your changes to GitHub:
To download your team’s changes:

18. Demo!

19. Thanks!
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