GIT add files to previous commit

To add files to an existing commit in Git, you need to follow these steps:

1. Make sure you are on the branch where the commit was made. You can check your current branch with the command git branch.
2. Make changes to the files you want to add to the commit.
3. Stage the changes with the command git add <file>. You can add one or more files by separating them with spaces, or add all changed files with the command git add ..
4. Use the command git commit --amend to amend the previous commit. This will open a text editor where you can modify the commit message. Alternatively, you can use the option -m followed by the new commit message to specify the message inline: git commit --amend -m "New commit message".
5. Save and close the text editor to finalize the commit.

Note that amending a commit will replace the old commit with the new one, and the commit hash will change. This means that if you have already pushed the old commit to a remote repository, you will need to force push the new commit to overwrite the old one with the command git push --force.

git push --force // only if you already pused commit 

Also, keep in mind that it’s generally not recommended to amend commits that have already been pushed to a remote repository, as it can cause confusion and conflicts with other team members.