Update. I tried the `file -u` example you gave above and the `-u` flag doesn't exist in my version of `file`. I also find it a bit hilarious that the example lists `ed` as the editor of choice.
Yeah, I was giving a example of a sensible way to design it, not documenting something that already exists; sorry if that wasn't clear.
> And maybe it could be a command [like `file -u FILE`] rather than a tab-press. Then it, given a file, prints typical actions/commands/tasks to stdout and then subsequent CLI tools can be used to process that output.
Pretty much that, yes.
> I also find it a bit hilarious that the example lists `ed` as the editor of choice.
I don't think unix had TECO as a standard utility, so I went with what was available.