1. Discard changes to local files in git

As a programmer, it happens every day that unexpected errors occur. To solve the errors quickly, we fumble wildly with the code. Unfortunately, these code changes are not always optimal. It is, therefore, helpful to quickly undo the changes you have made. this is the common mistake in git
. if you don't want to do it you can do git commit with a comment.
With the command “git checkout” you can reset the files to their original state:

• Reset directory "myCode" git checkout - myCode

2. Undo local commits. git commit revert

You have already created four new commits and only now realize that one of these commits contains a major error. Oops!

No panic. If you want to undo one or more commits, you can use the “git reset” command. The command knows three different modes (soft, hard, mixed):

• Undo the last four commits, keep changes
  git reset HEAD ~ 4

  • Undo the last four commits, discard changes git reset --hard HEAD ~ 4

3. Remove the file from Git without deleting it completely in git commit

You often add a file to the staging area ( git add ) that doesn’t belong there. You can use the command “ git rm “ here. However, this also removes the file from your file system.

However, if you want to keep the file in the filesystem, you can better remove it from the staging area with “git reset ”. Then add the file to the .gitignore so that you do not mistakenly pack it back into the staging index in the future. That’s how it’s done:

git reset Dateiname
echo Dateiname >> .gitignore

4. Git commit message change

git commit message changes Every programmer makes a typo on a commit. Fortunately, commit messages are very easy to correct using the “git commit — amend” command. you can commit your code with your own git commit with a message. That’s how it’s done:

• Start the standard text editor to edit the commit message
  git commit --amend

• Sets the new message directly
  git commit --amend -m "My new commit message