How to move HEAD?

You can move HEAD in Git using several commands, depending on what you want to achieve. Here are a few common methods:

Checkout a Branch: To switch to another branch and move HEAD to that branch's latest commit:
```
git checkout branch-name
```
Reset to a Previous Commit: To move HEAD to a specific commit, you can use the git reset command. There are three types of resets:
- Soft Reset (keeps changes staged):
```
git reset --soft commit-hash
```
- Mixed Reset (keeps changes in the working directory but unstaged):
```
git reset commit-hash
```
- Hard Reset (discards all changes):
```
git reset --hard commit-hash
```
Rebase: To move HEAD while applying commits from one branch onto another:
```
git rebase branch-name
```
Checkout a Specific Commit: To move HEAD to a specific commit without changing branches:
```
git checkout commit-hash
```

Remember to use these commands carefully, especially reset and checkout, as they can alter your commit history and working directory.