Using GIT Bash:

Step by step Git commands:
To clone repository:
git clone https://repository url.

To get current branch:
git branch  

Repository init:
git init 

To pull changes from the git:
git pull 

To add all the modified files for next commit.
git add .

To commit changes on git:
git commit -m "your commit message"

To push chanes to git:
git push
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Some other useful commands: 
To check which files are added or modified to project folder, use below command
git status
 
To point the changes to .git folder or if you want add specific file
git add .
    OR
git add {filename}
 
For speicifing your identity, run below commands
git config --global user.email nitin.ahire@clariontechnologies.co.in
git config --global user.name "Nitin Ahire"

ssh-keygen -t rsa -C "$your_email"