add buffer to vim from the shell command line

Question

I am currently trying to externally add a new buffer to a vim instance from the command line.

That means I have already opened vim and I modify the files of interest to me. Then I want to go back to my bash line, so I do Ctrl + z, which makes my vim task go to the "Stopped" state.
Later I find myself to a completely irrelevant directory, wanting to edit a file. Because I don't want to open a lot of vim instances, I would like to have this added in my previous vim task (short of like most of the non-cli text editors work out there)

I am lazy. I don't want to go back to my vim instance with fg and do :edit /a/very/long/path/file

I want to do a magic add_buffer_to_vim ./file and immediately open my previous vim instance with the new buffer loaded and ready to edit.

Also I am running vim in a machine without admin rights, so installing/compiling new vi flavors is not a possibility.

I hope I am not asking for much. Thanks!

Answer 1

Suppose Vim is running, you can use Vim remote to send commands. I suggest to keep it running (i.e. bg after ctrl z) and then use vim --remote to send an edit command to it.

If you don't want to do this, a possible solution is to use a file that will contain a file list. Vim will check it when running and load buffers from this file.

Use au GuiEnter maybe.