What is GIT?
Git is…

Git is a free & open source, distributed version control system designed to handle everything from small to very large projects with speed and efficiency.

Every Git clone is a full-fledged repository with complete history and full revision tracking capabilities, not dependent on network access or a central server. Branching and merging are fast and easy to do.

Git is used for version control of files, much like tools such as Mercurial, Subversion, CVS, Perforce, and Visual SourceSafe.

A single git repository can maintain multiple branches of development.

Get a list of all existing branches

git branch

Result :

 * master 

Create a new branch (named test)

git branch test

Switch from default “master” to the test branch

git checkout test

Force to switch branch from “master” to the test branch

git checkout -f test

Merge test branch with “master” because two branches have diverged, different changes made in each

git merge test

If there are conflicts with the changes, show markers

git diff

Push the “test” branch to remote repo

git push origin test

Pull the remote “test” branch to local repo

git pull origin test

Delete remote “test” branch

git push origin :test

Delete local “test” branch

git branch -d test

>> Use it when changes in the test branch are already in “master” branch

git branch -D test

>> force delete test branch

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