Here’s a good place to start:

gpg --gen-key

Then follow the prompts.

This is patently false. Secure boot and hibernation are not mutually exclusive.

Zee shell ist die beste.

There’s also seq:

$ seq 1 2 10

This will print the numbers starting from 1, incrementing by 2 until you get to 10.

I think you’re conflating shells and terminals.

Is this a Demolition Man joke?

xz --version

So much whoooosh