Are you sure you haven't missed anything?

hi , so i have started the learn bash scripting course (before it i have learned the command line) and i have reached it’s project, and in the project i have to do some crazy things that i haven’t even learned during the course , am i missing something ? or have you guys missed something out , can some one tell me ?

Could you share a specific example of something from that project you’ve not come across?

it was the =
head , tail . <<< , >>>
which i learned individually because of that project, but that was not so optimal that inside the lesson we didn’t learned those