The --global flag in Git configuration is used to set configuration options that apply to all repositories for the current user. When you use this flag, the settings are stored in the global Git configuration file, typically located at ~/.gitconfig. This means that any Git commands you run in any repository will use these global settings unless overridden by local repository settings.
For example, setting your global username and email with the following commands:
git config --global user.name "Your Name"
git config --global user.email "your.email@example.com"
This will ensure that your name and email are used for commits in all repositories on your system, unless you specify different values in a specific repository.
