How can I undo the last commit in Git?

If you want to keep the changes:

git reset [--mixed] HEAD~1

If you also don't want to load the commit (just move the head to the previous one):

git reset --soft HEAD~1

And if you don't want to keep them (and revert to the state of the previous commit, effectively destroying the last commit completely as if it never existed):

git reset --hard HEAD~1

The command isgit reset <commit>

To specifically undo the last commit you can useHEAD~1

For example to go back to the previous commit you can use the sgte command:

git reset HEAD~1

The parameter --mixedallows changes to be kept in the working tree so that they can be modified later, however, since it is the default mode, it is not necessary.

In this case it seems to me the most appropriate option since you want to correct the commit so you need to revert the index to correct the changes.

Some of the optional parameters are:

1. --softit does not modify either the working tree or the index. Just change the HEAD to the indicated commit.
2. --mixedreverts the index but not the working tree so that changes are kept ready to be modified and possibly committed again. This is the default option.
3. --hardReverts the index and the working tree so that the changes are totally lost.

You can review the full syntax in the git-reset Documentation

$ git reset --soft HEAD~  o $ git reset --soft HEAD~1       #1
// Cambios necesarios //                                    #2
$ git add ...                                               #3
$ git commit ...                                            #4

You just do a soft reset, which keeps the changes local but undo the commit, then do whatever you want and commit again as you wanted the first time.

How can I undo the last commit in Git?

This is the correct way to do it:

$ git reset --soft HEAD~ 

very important, as another user mentions, this option applies when you need to keep the changes.