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Version Control

  • Version Control is a system that allows you to revisit various versions of a file or set of files by recording changes.
  • version control allows you to revert files or projects to a previous version.
  • Three types of version control Local, Centralized, and Distributed.
Local VC Centralized VC Distributed VC
One database One server creates mirrored repositories
No backup More knowledge with certain files CVC with fail-safe

Git

  • Git is a Distributed VC that stores data in a file system made up of snapshots.

  • It lets multiple developers work on the same code.

  • Keeps all of your project files in one repository.

  • Git is the “recipe” Github is the “bakery”.

States of files in Git

  • Commited Data is securely stored in a local database.

  • Modified File has been changed but not committed to the database.

  • Staged Flagged a file’s changed version to be committed in the next snapshot.

Local Repository structure

  1. Working Directory: The actual files reside here.

  2. Index: The area used for staging.

  3. Head: Points to the most recent commit.

Terminal Commands

  • $ “git status”- will determine the state of files.

  • $ “git add *”- will track all files in a repository.

  • $ “git commit -m ‘’”- will commit your added files with a message.

  • $ “git push origin master”- will push files.

  • $ “git push -f”- will force push all files that you have locally.

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