If you need a dedicated tutorial for a text editor it's a great sign that something is very wrong with its design, particularly concerning discoverability.
Emacs has no user-friendly command names (you need to memorize function names which are often meaningless abbreviations), no autocomplete, and doesn't show available functions.
Emacs has no user-friendly command names (you need to memorize function names which are often meaningless abbreviations), no autocomplete, and doesn't show available functions.