Git Git Undoing Changes 2

Question 1

How do you modify the message of the most recent commit without creating a new commit?

Accepted Answer

git commit --amend -m "new message"

Answer

git reset --soft HEAD~1 followed by git commit

Answer

git revert HEAD --message "new message"

Answer

git log --amend

Question 2

After running `git commit --amend`, what happens to the original commit?

Accepted Answer

It remains accessible via git reflog until garbage collection runs

Answer

It is automatically saved to a backup branch

Answer

It is permanently and immediately deleted from all storage

Answer

It becomes a parent commit of the new amended commit

Question 3

Which command allows you to find and recover the hash of a commit lost after `git reset --hard`?

Accepted Answer

git reflog

Answer

git log --all --oneline

Answer

git fsck --lost-found

Answer

git stash list

Question 4

How long does Git keep reflog entries accessible by default before they expire?

Accepted Answer

90 days

Answer

7 days

Answer

30 days

Answer

60 days

Question 5

Which flag with `git revert` prevents it from automatically creating a commit, letting you stage multiple reverts as a single commit?

Accepted Answer

--no-commit

Answer

--soft

Answer

--staged

Answer

--hold

Question 6

What does `git clean -fd` do?

Accepted Answer

Removes untracked files and untracked directories

Answer

Removes staged files and empty directories

Answer

Force-deletes the last commit from history

Answer

Cleans the reflog and triggers garbage collection

Question 7

Which flag for `git clean` performs a dry run, showing what would be deleted without actually removing anything?

Accepted Answer

--dry-run or -n

Answer

--preview or -p

Answer

--list or -l

Answer

--simulate or -s