Keep Ubuntu 20.04 (or its derivatives) updated and clean

This also works for all Debian-based distributions.

It is good practice to keep a system updated and all packages at their latest stable version. This short note outlines a simple workflow for Ubuntu 20.04 and similar Debian-based systems.

Follow the link and copy the contents of this file. Open your preferred text editor and save the pasted content as uptodate.

Give the file executable permissions:

chmod a+x uptodate

Then run it from the directory where it lives:

./uptodate

You can also move the executable into $HOME/bin and add that path to your PATH environment variable to make it available globally.