git blame
- Git course
- Advanced
- Lesson 9/56
- 4 min
Learn line authors with git blame.
Introduction to git blame
git blame shows which commit last modified each line in a file. Its output includes the commit ID, author, date, and line content. This helps you investigate who originally added or changed a particular line of code.
git blame app.jsThis command lists attribution information for every line in the file. Blame is not about assigning fault; it is a tool for understanding code history.
Reading blame output
In blame output, each line begins with the short ID of the relevant commit. Author and date information follow, and the source code line appears at the end. After identifying the commit that last changed a line, you can inspect that commit with git show.
git blame app.js
git show a12bc34This approach helps you understand which change introduced the line's latest modification.
Practice Get blame output for a file
Write the Git command to inspect the author and commit information for every line in routes.php.
Starter code
# routes.php satırlarının geçmişini inceleExpected output
Blame information displayed for routes.php.
Questions and answers
Review the lesson questions together with their answers. To test yourself, solve the lesson interactively.
1 Which command shows the commit and author information for the last modification of every line in a file?
- git blame app.js Correct answer
- git diff app.js
- git status app.js
- git log app.js
Explanation: git blame displays file lines together with their commit and author information.
2 Inspect line attribution in a file
git ____ app.jsgit blame app.jsExplanation: Use git blame to view line history and author information for a file.
3 Information in blame output
| Term | Meaning |
|---|---|
Commit kimliği |
Marks the commit that changed the line |
Yazar |
Shows who made the change |
Tarih |
Indicates the commit date |
Satır içeriği |
Shows the source code text |