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Code & Deliveryphrase · /ɡɪt bleɪm/

git blame

In simple English

Git blame is a version control tool that displays the revision and author information for each line in a file. When you run this command on a file, it shows you the commit hash, author name, date, and the actual line of code for every single line in that file. This helps developers understand why a particular piece of code was written that way, who wrote it, and when it was added. In real workplaces, engineers use git blame to investigate bugs, understand design decisions, or learn the context behind existing code. It is especially useful during code reviews or when fixing issues introduced by previous changes. The name comes from the metaphorical sense of finding where a problem originated, though the tool itself is purely technical and neutral.

What is git blame and how do I use it to find which developer made a specific code change?

At a glanceCEFR B2
Commonness5/5
Versatility4/5
FormalityCasualFormalNeutral
Spoken ↔ WrittenSpokenWrittenBoth
Directness ↔ DiplomaticDirectDiplomaticDirect
RegionUS and UK
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Say it like this

✓Let me git blame this file to see who changed it.
✓I will git blame the broken line to understand the context.
✓We should git blame the authentication code to find the root cause.

Real examples

in a standup

"I ran git blame on the login module and found the issue was introduced in last week's refactor."

in a code review

"Before we revert this, let me git blame it to see the original intent behind this implementation."

in a team meeting

"We can git blame the database query to understand when that performance issue started."

Don't say this

Handle with care. Do not use as actual blame or criticism of a person. It is a technical tool name, not a personal attack. Context matters in team settings.

✕I will blame you with git blame for this error.
✓I will use git blame to find who made this change.— Git blame is a technical tool, not a personal accusation. Use neutral language when discussing it.
✕Git blame shows us the guilty party.
✓Git blame shows us who made the change and when.— Avoid accusatory language. The tool is for investigation, not blame assignment.
✕Run git blame and find the culprit.
✓Run git blame to find the origin of this code.— Use objective language instead of accusatory terms in professional settings.

Other forms

noun

git blame

"Git blame is a useful command for understanding code history."

verb

run git blame / use git blame

"Let me run git blame on that file to find the commit."

Often used with

run git blameMost common verb phrase; means to execute the git blame command
git blame outputThe result or information displayed after running git blame
git blame a fileTo apply git blame to a specific file to see its change history
git blame a lineTo find who last modified a specific line of code

Similar words

annotateA similar Git command that shows line-by-line authorship; more formal and less commonly used
code historyGeneral term for tracking changes; broader than git blame which is a specific tool
commit historyShows all commits to a repository; less detailed than git blame which shows per-line information

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Practice

Try it

4 quick exercises

Pick the most natural phrasing

1. You found a bug and want to investigate who made the change. What do you say?

Complete the sentence

2. I need to _______ the authentication module to understand why this security issue exists.

Spot the mistake

3. Which sentence uses git blame correctly?

Rewrite naturally

4. Rewrite using git blame: I want to find out which person on our team wrote this problematic code and when they wrote it.

Questions

Quick poll

Have you said "git blame" in a standup this week?

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