How do I open vim from the command-line at a particular tag?

Question

I have set up ctags to generate a tags file for my code base. I can now jump to definitions of functions by running :tag FUNCTIONNAME or by pressing ctrl-] when my cursor is on the invocation of a function call.

I would like to open Vim or Neovim from the command-line so that it opens the file and navigates to the line number where a function resides, like this:

vim --open-tag FUNCTIONNAME

How do I do that?

Answer 1

Good news! This is easy to do. Just use the -t command-line option:

vim -t TAGNAME