git clone <url>             --> clone a git repository
  touch <name>                --> create a new file with <name> as name
  git add <fileName>          --> track named file
  git commit -m "<message>"   --> commit tracked file with a message 
  git push                    --> push the committed file to the current branch 
  git status                  --> shows the status of the current changes which haven't 
                                  been not commited yet
  git branch                  --> shows the available branches and highlights the current one 
  git branch <name>           --> creates a new branch named <name>
  git checkout <branchName>   --> changing the current branch to <branchName> branch
  git merge <branchName>      --> merges <branchName> to master