Git - can't figure it out?

Question

git

Hello colleagues!
I'm trying to work with Git. Installed locally (VS Code). Git Hub is not needed yet.
Created a .html file
In the file I wrote in the title - the number 1
created commit
In the file I made changes to the title - 2
created a new commit
git log shows 2 commits

For example, I want to rollback to 1 commit and see the number 1 in the title, see these changes in the file html.
What should be done? How to see again in header - 1?
There are commands to rollback to previous commits, but they do not change the content of my title in the file in any way!

PS Perhaps I did not understand the essence of Git (what it can do), or it is only for viewing changes, but it does not return the previous version of the working html file (content).

Answer 1

git hist
to get the hash of a specific commit
git checkout <hash>
to get back to a specific commit by its hash

Answer 2

Here are two useful links to get familiar with git

1. https://githowto.com
   
2. https://learngitbranching.js.org/?locale=ru_RU
   

Answer 3

Thanks)
git checkout - works)
And by the name, tell me how to call the desired commit - for example, I have -a -m"2"
git commit -a -m"2"
Dmitry, thanks for the second link.