Git Git History and Log 2

Question 1

What does `git blame <file>` show?

Accepted Answer

Each line of the file annotated with the commit and author that last modified it

Answer

The `git blame` command annotates each line of a file with the commit hash, author, and date of the last change to that line.

Question 2

How do you limit `git log` output to commits by a specific author?

Accepted Answer

git log --author='Author Name'

Answer

The `--author` flag filters the log to show only commits where the author name or email matches the given pattern.

Question 3

Which command shows commits that exist in `feature` but not in `main`?

Accepted Answer

git log main..feature

Answer

The `main..feature` syntax (double dot) shows commits reachable from `feature` that are not reachable from `main`.

Question 4

What does `git log --since='2 weeks ago'` do?

Accepted Answer

Shows only commits made in the last 2 weeks

Answer

The `--since` flag (equivalent to `--after`) limits the log to commits made after the specified date or relative time.

Question 5

Which format option for `git log --pretty` displays the full commit hash, author, date, and full message?

Accepted Answer

--pretty=full

Answer

The `--pretty=full` format shows the commit hash, author, committer, and full commit message body.

Git Practice Test