Moving the the very bottom of the file with vi

From command mode, type the upper case letter 'G'.

Esc+Shift+Colon to get to the : prompt.

Then type any integer and ENTER to jump to that line number or...

$ to jump to the end line of the file.

Other uses of the $ in vi are:

E.g.

:1,$s/foo/bar/

this means: take the range of lines from 1 to the end of the file ($) and search them (s) for 'foo' and replace them with 'bar'.

I learned vi back in 1989 and I still use it today!