How can I uncommit my last commit in git? Is it git reset --hard HEAD or git reset --hard HEAD^ ?

To uncommit your last commit in Git, you can use the git reset command along with the --hard option and the HEAD^ syntax. The correct syntax is:

git reset --hard HEAD^

This will remove the last commit from your branch and reset your working directory and staging area to the state of the previous commit.

Here's an example:

Suppose you have the following commit history:

* b3a7d23 (HEAD -> main) Commit 3
* 9e0f3d2 Commit 2
* c7f1a1e Commit 1

You want to remove the last commit (Commit 3). You would run the following command:

git reset --hard HEAD^
 
After running this command, your commit history will look like this:

* 9e0f3d2 (HEAD -> main) Commit 2
* c7f1a1e Commit 1

The changes from the removed commit will be discarded, so make sure you have a backup of any important changes before using git reset --hard.

Please note that this operation is destructive, and any changes in the uncommitted commit will be permanently lost. Use it with caution.