First: how do you install it? Well, if you have access to the internet (which I hope you do), just open your terminal and type this command:

# This script updates the package list and upgrades the dpkg package with root privileges.
# The -y flag automatically answers yes to any prompts during the upgrade process.

# Update the package list using apt update command.
sudo apt update

# Upgrade the dpkg package using apt upgrade command.
sudo apt upgrade dpkg -y

This will update your package list and then upgrade dpkg to the latest version. If you don’t have access to the internet, you can download a copy of dpkg from their website (which I won’t link here because that would be cheating) and install it manually using these steps:

1. Extract the tarball with `tar -xzf dpkg-version.tar.gz`
2. Change into the extracted directory with `cd dpkg-version/`
3. Run `sudo make && sudo make install` to compile and install it
4. Verify that everything worked by running `dpkg –help` in your terminal (you should see a list of options)

Now, how dpkg works. It’s like a superhero sidekick for apt because it can do things that apt can’t or won’t do. For example:

– If you have a package that you just installed and somehow broke the apt (or if a package installation accidentally got interrupted), you can use dpkg to fix it by running `sudo dpkg –configure -a` in your terminal. This will reconfigure all packages that are currently in an unconfigured state, which should hopefully resolve any issues with your system.
– If you want to remove/uninstall a package rather than purge it (i.e. leave the configuration files), you can use `sudo dpkg –remove ` instead of `sudo apt remove `. This will uninstall the specified package without deleting any configuration files or directories that were created during installation.
– If you want to verify a package, you can run `sudo dpkg -V ` in your terminal. This will check if the installed version of the package matches the version listed in its metadata file (which is usually located at /var/lib/dpkg/status). If there are any discrepancies or inconsistencies, you’ll see an error message that tells you what went wrong and how to fix it.
– And if you want to do a more thorough audit of your package database, you can run `sudo dpkg –audit` in your terminal. This will perform various sanity and consistency checks on all installed packages (or just the ones specified) and report any issues or errors that are found. You can also use this command to check if there are any unresolved dependencies between packages, which is a common cause of package management problems.