Git Basics

Git stores data as snapshots of the project over time

When commit• Save all the files• If files have not changed, point to the previous identical file

• To be more efficient • Create a ID to reference the commit

• ID=SHA1

Other SCM systems

Other systems tend to store data as changes to a base version of each file.

Initializing a Repository in an Existing Directory

• Create a folder• Inside the folder• $ git init

.git Folder

• Init command creates .git folder

• Local repository• Invisible folder• To display

invisible folders $ ls -la

Inside .git folder

$ ls –l .git

Your Identity• Keep tracking of who worked

on the code• Name• Email• Example

$ git config --global user.name "John Doe" $ git config --global user.email johndoe@example.com

• Identify is save in .gitconfig– Under the home foler

Cat .gitconfig

• Show the configuration information

Adding and Committing

Staging Area

Before and after git add

Recover files from .git

• You can recover them from .git (local repository)

• After deleting files from working directory