Upgrade all applications assuming yes to each prompt.

To upgrade all applications assuming "yes" to each prompt, you can use the following command:

sudo apt-get update && sudo apt-get upgrade -y

This command will first update the package lists and then upgrade all the packages that can be upgraded without prompting for confirmation. The "-y" option will automatically answer "yes" to any prompts that may come up during the upgrade process.

Note that blindly accepting all prompts during the upgrade process can potentially cause compatibility issues or other problems, so it's important to verify that the upgrade won't cause any issues before proceeding. It's also a good idea to make a backup of any important data before upgrading in case something goes wrong.