Introduction to Github

Github is a git repository hosting service. As a user, you can place all your data in github repositories and access it from anywhere.

In this post, you are going to learn.

a.   How to create an account in github

b.   How to create and push the local git repository to github

How to create an account in github?

Go to 'https://github.com/' and create an account.

How to create and push the local git repository to github

When you login to github.com, you can see below kind of screen.

At left side of the screen, you can see all your repositories. Click on 'New' button to create new repository.

Give the Repository name as ‘gitHelloWorld’ and select the checkbox 'Initialize this repository with a README' and click on ‘Create repository’ button.

‘gitHelloWorld’ repository is created for you.

How to clone and push the changes to github repository

Step 1: Create a directory ‘HelloWorld’.

Step 2: Navigate to ‘HelloWorld’ directory and clone the git repository.

You can get the clone url from ‘Clone or download’ button.

Step 3: Execute below command to clone the git repository.

git clone {REPOSITORY_URL}

Example

git clone https://github.com/harikrishna553/gitHelloWorld.git

$git clone https://github.com/harikrishna553/gitHelloWorld.git
Cloning into 'gitHelloWorld'...
remote: Enumerating objects: 3, done.
remote: Counting objects: 100% (3/3), done.
remote: Total 3 (delta 0), reused 0 (delta 0), pack-reused 0
Unpacking objects: 100% (3/3), done.
$
$ls
gitHelloWorld
$tree
.
└── gitHelloWorld
    └── README.md

1 directory, 1 file

Step 4: go to the folder ‘gitHelloWorld’ and add a file ‘welcome.txt’.

$cd gitHelloWorld/
$
$touch welcome.txt
$
$git status
On branch master
Your branch is up to date with 'origin/master'.

Untracked files:
  (use "git add <file>..." to include in what will be committed)

 welcome.txt

nothing added to commit but untracked files present (use "git add" to track)

As you see the output of the command ‘git status’, you can observe welcome.txt is untracked by git.

Let’s add this file to git repository by executing below command.

git add welcome.txt

$git add welcome.txt 
$
$git status
On branch master
Your branch is up to date with 'origin/master'.

Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

 new file:   welcome.txt

Step 5: Commit the file welcome.txt by executing below command.

$git commit -m "Adding welcome.txt to the repository"
[master 70d8ded] Adding welcome.txt to the repository
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 welcome.txt

Step 6: Push the changes to remote repository by executing below command.

git push origin HEAD

$git push origin HEAD
Enumerating objects: 4, done.
Counting objects: 100% (4/4), done.
Delta compression using up to 12 threads
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 308 bytes | 308.00 KiB/s, done.
Total 3 (delta 0), reused 0 (delta 0)
To https://github.com/harikrishna553/gitHelloWorld.git
   e7e1088..70d8ded  HEAD -> master

Go to gitHelloWorld repository from github.com, you can see the new file welcome.txt.

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