What is Version Control

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What is Version Control

If you have ever worked in a collaborative environment with other developers on a particular project, then you might have faced a frustrating situation of managing code in different files. Sometimes you do it manually and this leads to the chances of getting an error even though you have written correct code earlier. Every developer knows this pain.

A Version Control system is the finest way to solve this obstacle. Let’s dig into this version control system tutorial and reveal its advantages and need for software development.

A Version Control System alias Revision control system is a repository of files and a tool that designed to keep track of multiple versions of an application and store precious information such as images, documents, content and other files at all level of development. A VCS allow consist development and modification of software by any team of developers. Revision control system Offers mobility to build and export any project. A Version Control System is beneficial for any form of distributed development whether it is a small page of a website or any large software where you want to track each and every change that was made on any level or want to reverse any modification that is essential, it figures out all dispute.

Here are details of some versions of control systems, Let’s understand.

  1. Centralized Version Control System (CVCS): – A centralized Version control system store local copies of an application. A CVCS provide a server software component who manage the different versions of files. If a developer needs a copy of any certain version, just copy that file from Central Server and paste it into their personal computer.
  2. Distributed Version Control System: – In the DVCS user has an additional local repository to save the files. The main project file is already saved on the central repo and a copy is distributed to a local machine. DVCS provides batter performance, security, and flexibility as compared to CVCS.
  • What is Git?

Git is a modern distributed version control system that allows a user to store code, track revision history, modify the code and revert to earlier commit when needed. Git was created by Linus Torvalds and team in 2005.

  • What are repositories?

Repositories are a database where all the data has stored. Git stored all data and information in a repo call git repositories.

  • How to use Git?

Basically, you can use Git by commands. Here we show various types of git command that is beneficial when you are working on Git.

  1. git add: – You can use these command before you commit any changes that show with ‘git status’.
  2. git status: – It shows the current status of your file in a git repository.
  3. git pull: – Fetch the changes on the remote server. git clone: – Used to make a local copy of a remote repository.
  4. git commit: – This command will be used when you have used git add command. After this command, you have to save the local backup copy of your file.
  5. git config: – Used to set author name and email address respectively to be used with your commit.
  6. git push: – it is used to push any recent commit to another version of a repo.
  7. git reset: – Used to reset the work. git rm: – Used to delete files from the working directory.
  8. git init: – Used to start a new repository. git diff: – Shows the file differences.
  9. git stash: – It stored all the modified tracked files on a temporary basis.
  10. git log: – Used to list the version history for the current branch.
  11. git show: – Used to shown metadata and content changes of a specified commit.
  12. git branch: – Used to lists all local branches in the current repository.
  13. git tag: – Used to give the tag to the specified commit.
  14. git merge: – Used to merge a specified branch history into the current branch.
  15. git checkout: – Used to switch from one branch to other branches.
  16. git remote: – Used to connect your local repository to the remote server.
  • Features of Git –
  1. Security: – The main reason for use Git is ‘Security’. It designed specially to maintain the security of source code. Git use secured cryptographic algorithm called SHA1 which protect the files, directories, code and change history against malicious damage.
  2. Flexible workflow: – The main design concept of Git is the kind of flexibility that it offers on several small as well as on large-scale project. Git allows choosing your own workflow. Git has a unique quality to support branching and tagging operations and it also capable to store each and every activity that carried out by a user.
  3. Performance: – Git is very powerful and gives consist of performance as compared to other Version Control System. Widely used: – Git is the most widely used version control system as compared to others. Git offers types of security, functionality, performance, and flexibility that’s why most of the developer add it within the project.
  • Benefits for Git –
  1. Teamwork: – You can easily share the project code with your teammates and for reviews and changes. Many people can work on a single project. Git provides branching and review capabilities that allow simultaneous development.
  2. Tracking: – You can easily track your whole project and if you see some unnecessary changes, you can revert it to the previous commit.
  3. Offline availability: – Git comes with offline capability, it doesn’t require the internet for working.

If you are going for a technical interview, remember, the interviewer always ask questions on ‘Git’. Here are some questions, take a look.

  • What is Git?
  • What is the function of git config?
  • How can you fix broken commit?
  • Difference between Git and SVN?
  • What are the advantages of Git?
  • How to create a repository in a Git?
  • What is a bare repository in Git?
  • What does a commit object contain?
  • Difference between CVCS and DVCS?Difference between git pull and git fetch?
  • What is SubGit?What is Git Stash?
  • What is the purpose of branching in Git?
  • What is the use of git log command?
  • What language is used in Git?


  • My Last Word

Version Control System is an essential part of modern software development for a team’s professional practices.

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