How to delete accidentally committed data from a commit?

If you accidentally committed unwanted data, you can fix it in Git in several ways:

1. Fix the last commit (if it hasn't been pushed to the remote repository yet):

# Remove the file from the index (staging area), but keep it in the working directory
git reset HEAD <file>

# Remove the file from the working directory, if needed
rm <file>

# Make a new commit, correcting the previous one
git commit --amend

2. If the commit has already been pushed, but you need to remove data from history:

• Use git filter-branch or git filter-repo to rewrite history and delete files.

• After rewriting history, you need to force push the changes:

git push --force

3. If data was committed in multiple commits, you can use an interactive rebase:

git rebase -i <commit>~1

and delete or fix commits with unwanted data.

Important: rewriting history can affect other developers, so do it carefully and in agreement.