How to jump to the bottom of the terminal input history after a long lookback?
So, pretty much anywhere in Linux/Unix/OSX that you have a command history (e.g. bash), that's probably powered by the Readline library.
Readline has its own set of commands that get linked to keyboard shortcuts, and one of the history manipulation commands is end-of-history which is exactly what you're looking for.
The default keybinding is M->, or, Meta+>. On most Linux setups, Meta is usually bound to the Windows key, so typing Win+> will probably work. If not, or you're on OSX, typing Esc and then > will probably work.