Hey all you developers out there! Today we're going to talk about an important topic when it comes to managing your git repositories. It's crucial to keep your repositories clean and focused, which means we need to exclude certain files and folders that don't belong in the repository. One common example is the 'bin' and 'obj' folders that are generated by development environments such as Visual Studio. These folders contain compiled executable and object files that are not necessary for version control and can bloat your repositories. Here's how you can properly exclude them from git:

Step 1: Create or modify your .gitignore file

The .gitignore file is where you specify the files and folders that you want git to ignore. If you don't already have a .gitignore file, you can create one in the root of your repository. If you already have one, you can simply modify it to include the 'bin' and 'obj' folders.

Step 2: Add 'bin/' and 'obj/' to your .gitignore file

Inside your .gitignore file, you can simply add the following lines:

```json

bin/

obj/

```

This tells git to ignore any files or folders named 'bin' or 'obj' in the entire repository.

Step 3: Remove existing 'bin' and 'obj' folders from the repository

If you have already committed 'bin' and 'obj' folders to your repository, you will need to remove them from git using the following commands:

```json

git rm -r --cached bin

git rm -r --cached obj

```

This will remove the 'bin' and 'obj' folders from git's tracking, but leave the actual folders and files in your local file system.

Step 4: Commit your changes

After you have modified your .gitignore file and removed the 'bin' and 'obj' folders from git's tracking, you can commit your changes as usual.

And that's it! Now your 'bin' and 'obj' folders will be excluded from git, keeping your repositories clean and focused. Remember to always exclude unnecessary files and folders to keep your repositories manageable. Happy coding!