To find information about installed packages on a Debian-based system such as Ubuntu, you can use the apt-cache command. For example, to find information about the python3 package, you can run the following command:
apt-cache show python3
This will display detailed information about the package, including its name, version, description, dependencies, and more.
You can also search for packages that contain a specific keyword in their description using the apt-cache search command. For example, to search for packages related to Python, you can run the following command:
apt-cache search python
This will list all packages that contain the word “python” in their name or description. You can then use apt-cache show to display information about a specific package.