How can I repeat last Ex-mode command in normal mode?

Question

I'm looking for something like . or @@ that will work in normal mode for repeating the last Ex-mode command.

As per the rule of the XY problem, I'll also state the broader goal:

I have a fancy regex search and replace command in Ex-mode that I want to apply to almost all matches in the file. But I need to review each one before I change it. If I could use . to repeat an Ex-mode command, I could just use n and . to do what I need.

So any way to apply my search and replace to all lines interactively would help me—but I'd still be interested in an answer to the title question.

Answer 1

Use the /c flag at the end of your substitution in order to confirm each substitution:

:%s/foo/bar/gc

See :help s_flags.

Use & to repeat the last substitution without the flags. See :help &.

Use @: to repeat the last ex command.