When using vim inside my Bash-shell, I will sometimes use
Ctrl-Z to leave vim and do other things in the shell. Later, I will then use the
fg command to return to vim. However, it sometimes happens that instead of returning to vim with
fg, I start a new instance of vim when I find some file I want to edit. That means I have two instances of vim running in the same shell, and I don't like this idea. I want to force myself to only run one instance per shell.
Is there some way I can block vim from starting if one instance is already running in the current shell? Can this be implemented in the
.vimrc instead of making a shell script that runs when I type