git log --oneline and --graph - Mini Project: Build & Apply

Visualizing Git Commit History with --oneline and --graph

📖 Scenario: You are working on a small project using Git. You want to see a simple and clear history of your commits to understand how your project changed over time.

🎯 Goal: Learn how to use git log --oneline and git log --graph commands to view a concise and visual representation of your commit history.

📋 What You'll Learn

Create a Git repository with at least 3 commits

Use git log --oneline to see a short summary of commits

Use git log --graph to see a visual graph of commit history

Combine --oneline and --graph to see both summary and graph

💡 Why This Matters

🌍 Real World

Developers use these commands to quickly understand the history and structure of their project changes.

💼 Career

Knowing how to read Git logs visually helps in debugging, code reviews, and collaborating with teams.

1

Initialize Git repository and create commits

Initialize a Git repository in the current folder using git init. Then create three commits with these exact commit messages in order: First commit, Second commit, and Third commit. Use git commit -m for each commit.

Git

# Run these commands in your terminal
# git init
# echo "file1" > file1.txt
# git add file1.txt
# git commit -m "First commit"
# echo "file2" > file2.txt
# git add file2.txt
# git commit -m "Second commit"
# echo "file3" > file3.txt
# git add file3.txt
# git commit -m "Third commit"

Need a hint?

Use git init once, then create and add files before each commit with git add and git commit -m.

2

View commit history with --oneline

Run the command git log --oneline to see a short summary of each commit with its hash and message.

Git

# Run git log with --oneline option
# Your code here

Need a hint?

Use git log --oneline to see each commit as a single line with its short hash and message.

3

View commit history with --graph

Run the command git log --graph to see a visual graph of the commit history showing branches and merges.

Git

# Run git log with --graph option
# Your code here

Need a hint?

Use git log --graph to see a tree-like structure of commits.

4

Combine --oneline and --graph to view concise graph

Run the command git log --oneline --graph to see a simple graph with one-line commit summaries.

Git

# Run git log with --oneline and --graph options
# Your code here

Need a hint?

Use git log --oneline --graph to combine the benefits of both options.