Edit A File Starting On The Last Line

Generally when you start editing a file whether as a new Vim session (vim file.txt) or in an existing Vim session (:e file.txt), your cursor will be positioned at the beginning of the file.

You can start editing a file with the cursor positioned at the end of a file using an edit command -- include + with no line number. This may be useful for a large file or even if you just know that you'll be adding content directly to the bottom of the file.

If you are starting a new Vim session:

$ vim + file.txt

or if you are already in a Vim session:

:e + file.txt

See man vim or :h +cmd for more details.