git revert to undo a commit safely - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does git revert do?

git revert creates a new commit that undoes the changes made by a previous commit, without changing the project history.

intermediate

How is git revert different from git reset?

git revert safely undoes changes by adding a new commit, while git reset changes the commit history and can remove commits.

beginner

What is the command to revert the last commit?

The command is git revert HEAD. It creates a new commit that reverses the last commit.

intermediate

Why is git revert considered safe for shared repositories?

Because it does not rewrite history, it avoids conflicts with others who may have pulled the original commits.

beginner

What happens if you revert a commit that introduced a bug?

git revert will create a new commit that removes the bug by undoing the changes from the bad commit.

What does git revert do?

A Creates a new commit that undoes a previous commit

B Deletes the last commit permanently

C Resets the branch to a previous commit without a new commit

D Deletes all commits after a certain point

git revert safely undoes changes by creating a new commit that reverses a previous commit.

Which command is safe to use on a shared repository to undo a commit?

A git rebase -i

B git reset --hard

C git clean

D git revert

git revert is safe because it does not rewrite history, unlike git reset --hard or git rebase.

What does git revert HEAD do?

A Reverts the last commit by creating a new commit

B Deletes the last commit without a new commit

C Resets the branch to the previous commit

D Shows the last commit details

git revert HEAD creates a new commit that undoes the changes from the last commit.

Why might you prefer git revert over git reset?

A Because it deletes commits permanently

B Because it keeps the commit history intact

C Because it is faster

D Because it removes files from the disk

git revert keeps history intact, which is important for collaboration and tracking changes.

What happens if you revert a commit that fixed a bug?

A The commit is deleted

B The bug fix stays in place

C The bug fix is undone, reintroducing the bug

D Nothing happens

Reverting a bug fix commit will undo the fix, so the bug will come back.

Explain how git revert safely undoes a commit and why it is preferred in shared projects.

Think about how changes are undone without removing commits.

Describe the difference between git revert and git reset.

Consider how each command affects project history.