"The terminal" is a terminal emulator: just a program that runs a shell. It's easy to learn the MacOS terminal emulator, called Terminal—just read the user guid

"The terminal" is a terminal emulator: just a program that runs a shell. It's easy to learn the MacOS terminal emulator, called Terminal—just read the user guide accessible in the Help menu, under Terminal Help. But what you really want to learn, I'm guessing, is not just the terminal emulator, but a shell. For that, you'll need to pick a shell and read about it. ZSH is the one that comes standard on MacOS, so you can start with that. ZSH is also just a superset of BASH, so you could learn BASH commands and they'd be mostly applicable to ZSH. Try reading The Linux Command Line: https://www.linuxcommand.org/lc3_learning_the_shell.php https://www.linuxcommand.org/lc3_learning_the_shell.php.