A pet peeve of mine is confusing the terms "terminal", "shell", "CLI" etc. They are not interchangeable and the distinction is important to understand. - shell

A pet peeve of mine is confusing the terms "terminal", "shell", "CLI" etc. They are not interchangeable and the distinction is important to understand. - shell: the "top level" user interface for the operating system. Can be text-based or graphical, command-line based or point and click etc. It's how you do things once you've loaded an OS. Examples: sh, bash, zsh, fish, eshell (emacs). - terminal: A hardware device for input/output of text. Originally teletype machines (ttys) but later used CRT monitors instead of a printer. Example: DEC VT100, - terminal emulator: a piece of software that emulates a terminal. Examples: xterm, GNOME Terminal - CLI: command-line interface. A user interface based on typing commands one line at a time. Does not include text-based UIs like htop etc. Examples: git, curl. - TUI: text-based UI. Essentially a GUI but works on more advanced terminals (ie. not actual ttys). Examples: htop, emacs, vim.