Maoo [none/use name]

ext4 for system partitions and zfs for anything dedicated to personal data storage.

I recommend installing a Linux distribution that requires a hands-in approach like Gentoo or Linux from scratch. If you don’t have an extra computer you can do it on a virtual machine on the computer you do have.

The process will require you to use the various incantations and rituals of using the terminal. As you do so, learn what they do by googling them or using their man page.

For more practice, write a shell script or otherwise choose a task you want to do using the terminal like browsing through your files or searching for a file whose name matches a pattern and so on.

Wrong

The girl reading this comment

No no it’s this:

1. Decide you’ve gotta use tar.

2. man tar

3. Guess-and-check the flags until it seems to work.

4. Immediately forget the flags.