Git Basics

Keywords

• stage - add a file to be committed
• commit - The state of the repository at this point in time is saved
• checkout - Refers to the creation or switching between branches or commits.

Concepts

Git is a version control system that allows one or more people to manage different versions of a repository. A repository can be though of as a project directory. A repository contains documents like text, code, and configuration files as well as images. The repository, often referred to as a "repo", also contains the change history called a commit history. Each commit is a saved version of the repo at that point in time. You can think of a commit history as a series of backups.

Basic Commit History

Create A Local Repository and Make a Commit

1. Mac/Linux open a terminal
2. Windows open Git Bash
3. Create directory
4. Navigate through the terminal to the root of the directory
5. Type git init
6. Create a file called first-markdown.md and open it in your favorite text editor/IDE
7. Write something in the file and save it
8. In the terminal type
   1. git status
   2. git add first-markdown.md
   3. git status
   4. git commit -m "Some message here about what you did."
   5. git log
   6. Repeat these steps. On each iteration attempt to new files, edit existing files, and/or delete files

TODO do a revert

Basic Commands

git init                        Creates a new git repository
git status                      Show status of staged/unstaged files
git diff                        See changes to the file compared to most recent commit
git add <file_name>             Add file to commit (stage it)           
git commit -m "<message>"       Commit files with clear message about commit
git log                         Display a list of commits
git revert <commit id>          Revert the commit with provided id