Git Crash Course

Why use Git & Github?

• Keep your code organized and in once place
• Reverting mistakes is the best thing ever
• Share code easily
  • Show recruiters what you can actually do 
  • Others can learn from and reference your code
• You can contribute to things you actually use

Set Up

• Git
• Github
• Text editor
• Set up git
• Make a demo repository

Git Setup

http://bit.ly/githubhelp

Windows

• Download Git Bash

OS X

• Command Line Tools
• Homebrew
  • http://brew.sh/
• Install git

$ brew install git

Set up git using github instructions

Terminal Commands

$ ls
  list the files in the current directory

$ cd dir
  move into this directory

$ cp src dst
  copy src into the dst directory

$ mv src dst
  move src into the dst directory

$ touch file
  make an empty document called file

$ mkdir dir
  make a directory called dir

$ rmdir dir
  remove the directory called dir

$ rm file
  remove file (permanently!)

$ less file
  print the contents of file out to console

. means the current directory
.. means one directory above the current directory
~ means the "home" directory
* wildcard

Terminal Commands Practice

$ cd ~
$ mkdir demo
$ cd demo
$ ls
$ touch fileA
$ ls
$ touch fileB
$ mkdir dirA
$ mkdir dirB
$ ls
$ mv fileB dirB
$ ls
$ cp fileA dirA
$ ls
$ ls dirA
$ ls dirB
$ rm dirB/fileB
$ ls dirB
$ rmdir dirB
$ ls
$ cd dirA
$ ls
$ cd ..
$ ls
$ cd ..
$ ls

What does any of this do? Let's use the terminal and find out!

Let's make a repo

http://bit.ly/githubrepo

Git Workflow

$ git pull
$ git add XYZ
$ git status
$ git commit -m "MESSAGE"
$ git push

Commit often!